Question 1
calculation in a word or excel document, AND summarize in the text of your conference post the person you used for your analysis, the value you arrived at through your calculations, and your opinion of the accuracy/relevance/appropriateness of the calculations. Do you think they are representative of the value actually provided by this person? What other factors might come into play that would impact this type of calculation?,Select person (yourself, someone in your family, or another person you know well) Provide key data that you and the ?trier of fact? would need to know to understand your calculations ? e.g., name, gender, age, occupation, family situation, etc. Use the U.S. Bureau of Labor Statistics (BLS) American Time Use Survey (ATUS): http://www.bls.gov/tus/#tables to determine the activities and percentages of time that you should use to conduct the calculations. There are many tables for different groupings of people ? single, single parent, married with children under 18, etc. Be sure to select the correct one for your circumstances. If you feel that the tables are not accurate for your situation, feel free to use your own percentages, but defend them in your answer. Prepare a table to show each of the components you have selected and the percentages of time allocated for which you want to calculate damages due to lost services. Be sure to accurately detail all of the activities that truly represent household activities that would not be done if you (or the person you are profiling) could not do them ? i.e. not just cooking and shopping. Use a footnote the table you are preparing for this assignment to show which databases/tables you used to arrive at your allocation of time. Determine the replacement cost for each activity that the household has lost due to the injury or death of the subject. In other words, how much would the family or the estate have to pay in the open market to replace the household services that were previously provided by the injured or deceased person? You only need to calculate one year of lost services ? not the entire lifetime. Add a column to your table to show the rates and calculations you are using for each component identified in #4 above. Some of the databases you can use to determine the replacement cost (calculate and use hourly wages) include the following. Be sure to indicate in a footnote to the table which database you used.
Question 2
Ashford 6 : - Week 5 - Critical thinking Quiz Time Remaining: 1. Reporter: A new campaign finance reform bill being considered by Congress would limit the amount of campaign contributions that political candidates can receive. However, a survey of candidates running for mayor, governor, and senate seats shows that not one of them favors the bill. Clearly, there is no desire among politicians to limit campaign contributions. Which one of the following points out the flaw in the reporter?s argument above? (Points : 1) The reporter doesn?t indicate the amount that the new bill would limit campaign contributions. The evidence provided by the reporter suggests that most politicians are in favor of the new bill. The reporter wrongly assumes that no politician has ever supported a bill intended to limit campaign contributions The views of candidates currently running for office do not necessarily represent the views of all politicians. 2. Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1) does not suggest that Catherine goes to see every romantic comedy that plays at her local movie theater implies that Catherine is uninterested in most types of movies does not indicate whether Catherine watches only romantic comedies at home suggests that Catherine?s local movie theater hardly ever shows romantic comedies 3. Mrs. Orlof teaches two history classes, one in the morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the morning test failed the test than students who took the afternoon test, more of Orlof?s morning history students than afternoon history students will have to take the retest. The conclusion above is not necessarily valid because (Points : 1) more students in the morning class may have passed the test than failed the test some students may have been absent from both classes some of the students who passed the afternoon test may have received information about the test from morning students more students may have taken the test in the afternoon than in the morning 4. Since Jessica?s participation in local politics increased significantly after she joined her school?s political science club, it is clear that her involvement in that club led her to take an interest in politics. The argument above is flawed because (Points : 1) it doesn?t say which political issues Jessica is interested in it states that the only purpose of the political science club is to spark an interest in politics it misuses the word ?significantly? it?s possible that an interest in politics caused Jessica to join the political science club 5. People have claimed that Jamie?s paintings have given them the blues. Clearly this cannot be entirely correct, since many of Jamie?s paintings contain no blue at all. The argument above is flawed because the author (Points : 1) provides no evidence misinterprets a key term relies on contradictory facts is not a noted painting expert 6. The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses (Points : 1) Jerry with other members of the team the members of one team with the members of another team people who are six feet three inches tall for people who are exactly six feet tall an average for the individuals that make up that average. 7. Some politicians claim to support the environment in speeches they make around the country. However, to get to those speeches they ride in gas guzzling, pollution creating private planes. They therefore clearly don?t believe a word of what they say and are actually making the environmental problem worse. Which one of the following, if true, would best weaken the argument above? (Points : 1) Some of the politicians try to hide the fact that they travel by private plane to their speeches around the country. Most people who hear the politicians? speeches on the environment are unconvinced by their arguments. A majority of voters surveyed agree that politicians sometimes make society?s problems worse. Improvements to the environment brought about through the politicians? public support of environmental regulations more than offset the damage done to the environment by the politicians? private planes. 8. Aron: The two double A batteries in my CD player are dead, so the CD player doesn?t work. My television remote control, which also uses two double A batteries, works fine. So if I move the two batteries from my television remote control to my CD player, the CD player will definitely work. Aron?s argument is most strengthened if which one of the following is true? (Points : 1) Aron inserted the current batteries in his television remote control two months before he inserted the current batteries in his CD player. The amount of energy required to power the CD player is not greater than the amount of energy needed to power the television remote control. Aron has used his television remote control more times than he has used his CD player since inserting the current batteries into each device. Double A batteries provide less energy than either C batteries or D batteries. 9. The untimely death of Professor Hathaway halted his groundbreaking research into the uses of solar power. It therefore appears that Hathaway?s research will not result in practical applications. Which one of the following, if true, most seriously weakens the argument? (Points : 1) Professor Hathaway?s research can be used by other scientists to create useful applications. Not all professors at Professor Hathaway?s university knew that he was conducting research into the uses of solar power. Officials at Professor Hathaway?s university have refused requests to make Professor Hathaway?s research public. Researchers at other universities are conducting research into the potential applications of solar power. 10. Last season at City Opera House, far more people attended opera X than opera Y. However, opera Y generated far greater net profits for City Opera House than did opera X. Each of the following could directly explain the result indicated above EXCEPT: (Points : 1) a difference in the ticket prices of operas X and Y a difference in the operating expenses of operas X and Y a difference in the subject matters of operas X and Y a difference in the merchandise sales associated with operas X and Y 11. Surveys show that people who use calorie information to decide which foods to eat consume on average 100 calories less than they would if they didn?t check calorie information before eating. Strangely though, people who use calorie information in this way weigh more on average than people who don?t check calorie information before eating. Which one of the following, if true, best explains the surprising statistic stated above? (Points : 1) There are fewer people who check calorie information before eating than people who don?t check calorie information before eating. People who usually check calorie information before eating consume more calories if they stop checking. Some people who check calorie information before eating don?t consume any fewer calories than they would if they didn?t check. People with a weight problem are most likely to check calorie information before eating. 12. Choose the pair of words/phrases among the choices that exhibits the same logical relationship as the words/phrases in the following pair. heavy : weight (Points : 1) dry : wet feather : scale hot : temperature color : size 13. Choose the pair of words/phrases among the choices that exhibits the same logical relationship as the words/phrases in the following pair. gavel : judge (Points : 1) baton : conductor symphony : composer stop sign : driver ruler : math 14. Choose the pair of words/phrases among the choices that exhibits the same logical relationship as the words/phrases in the following pair. building : blueprint (Points : 1) ship : sea cake : recipe bridge : island guitar : song 15. Barney: Last winter, I slipped on the outside stairs of PineTree Caf? and broke my leg. My fall was caused by ice on the stairs that the restaurant failed to remove. Since the restaurant clearly did not provide a safe atmosphere for its customers, I am justified in taking it to court. Lydia: Unwarranted lawsuits are sweeping the country?lawsuits that have no legal merit and are brought simply to make lawyers and their clients rich. If this trend continues, soon our legal system will be swamped to the point where it won?t be able to administer justice to people who truly deserve it. You therefore should drop your case against PineTree Caf?. The speakers above appear to disagree on which one of the following points? (Points : 1) Barney is likely to win his case against Pinetree Caf?. Barney?s lawsuit against Pinetree Caf? is unwarranted. Many unwarranted lawsuits are sweeping the country. The legal system will soon be unable to administer justice to people who deserve it. 16. Arthur: The solutions to most mystery novels I read are not believable. However, my enjoyment of a mystery novel depends only on its suspenseful mood and colorful characters. Norton: Roughly 80% of the mystery novels I read have believable solutions, which is good since I do not enjoy mystery novels that don?t have believable solutions. The speakers above (Points : 1) agree that most mystery novels do not have believable solutions agree that a suspenseful mood and colorful characters add to the enjoyment of a mystery novel disagree on whether a believable solution is required for the enjoyment of a mystery novel disagree on whether an author?s enjoyment in creating a mystery novel influences whether that novel will have a believable solution 17. Some drugs combat obesity or alcohol addiction by turning off pleasure centers in the brain. However, if the dosage is too high, there?s a risk that people taking them will be plunged into depression. The statements above, if true, support which one of the following assertions? (Points : 1) It is useless to try to treat obesity or alcohol addiction through drugs. All drugs, if taken at too high a dosage, pose the risk that the people taking them will be plunged into depression. The benefits of a medication may be at least somewhat offset by its side effects. Drugs that affect pleasure centers in the brain are often taken at dosages considered to be too high. 18. In a survey of 10 film historians, half voted for Nosferatu as the greatest vampire film ever made, and the other half voted for Dracula. However, when asked which lead vampire character they considered more charismatic, all of the film critics chose Dracula over Nosferatu. Based on the information above, it must be true that for some film critics, their feelings about the charisma of the lead character (Points : 1) is the least important factor they consider when comparing two films is the most important factor they consider when comparing two films is not the most important factor they consider when comparing two films is the only factor they consider when comparing two films 19. Only circus animals with a clean bill of health will perform in today?s exhibition. A monkey, a poodle, and a horse will perform in today?s exhibition. No circus animals with a clean bill of health were prescribed medications this week. If the statements above are true, which one of the following must also be true on the basis of them? (Points : 1) The monkey, poodle, and horse are the only animals performing in today?s circus exhibition. No circus animals were prescribe medications this week. No more than two circus animals have a clean bill of health. Neither the monkey nor the horse performing in today?s circus exhibition were prescribed medications this week. 20. The president spoke to 19 congressmen from Texas to encourage them to vote for a bill. Since four of the 19 congressmen went on to vote for the bill, it is clear that the president persuaded those four to vote the way they did. The argument above assumes that (Points : 1) the bill will not pass because a majority of Texas congressmen did not vote for it the Texas congressmen who voted against the bill were persuaded by someone other than the president to vote the way they did the president did not try to influence the votes of any congressmen outside of Texas the four Texas congressmen who voted for the bill were against it before they spoke to the president 21. Looking to increase the profits of his lemonade stand, Johann doubled the price of a cup of lemonade from 25 cents to 50 cents. This clearly shows Johann?s lack of business sense, for now he?ll almost certainly sell fewer cups at the new price and therefore make less money than before. The argument above assumes that (Points : 1) Johann is looking to double the profits of his lemonade stand the price increase will likely put Johann out of business profits from the price increase will not offset the money lost when fewer cups are sold even if Johann sells more cups at the new price than he did at the old price, he?ll still lose money on the lemonade stand 22. A company can either invest in employee training seminars or update its computer network. Since updating the computer network would result in more measurable benefits, the company would be best off updating its computer network. The argument above assumes that (Points : 1) investing in employee training seminars would yield negative results for the company the more measurable a benefit, the greater value that benefit has to a company the employee training seminars would focus on teaching employees to use the updated computer network the benefit of the company investing in employee training seminars cannot be measured at all 23. The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated life-threatening diseases such as polio, the human immune system increasingly targets other environmental substances in order to keep working properly. Allergy symptoms such as runny nose and itchy eyes result when the immune system attacks pollen that is breathed in from the air. Which one of the following best expresses the main point of the passage above? (Points : 1) Immunizations often have surprising side effects. Immunizations have been very successful in eliminating life-threatening diseases. Viruses that once caused polio now cause allergies. The use of immunizations has led to an increase in allergies. 24. Political science professor: Many people insist that the Internet is revolutionizing the political process. They argue that Internet debates and online political polls and chat rooms give people greater access to political information. And they?re right that online political chatter increases daily. But offering or reading anonymous online opinions does not by itself make for active political participation. In the past one would attend a rally, protest, or town meeting to engage in real politics. Today, people sit passively in front of computer screens under the illusion that they are connecting with their fellow citizens. Which one of the following best expresses the main idea of the professor?s argument? (Points : 1) Internet debates and online political polls and chat rooms give people greater access to political information. Political organizations of the past bear no resemblance to the political organizations of today. While the Internet has made more political content available, meaningful political involvement has decreased. The Internet has revolutionized the political process because it has allowed many more political viewpoints to be expressed. 25. Sometimes people get caught in a ?downward spiral,? a case in which something leads to a result which in turn leads to more of the original thing, bringing on more of the result. As the process continues, the result continually gets worse and worse. An example is when people turn to binge eating when depressed, which causes them to put on weight and feel unhealthy, which then makes them more depressed, leading to more overeating, and so on. The author is mainly concerned with (Points : 1) convincing people not to overeat explaining the process of the ?downward spiral? showing how overeating can lead to depression showing how some processes lead to surprising results Only (1) answer is right with (4) possible answers for each question,it is for a logics class.,I received the information too late. I turned in my answers @ 11:53pm on the 03/06 CST. Your email did not come in to my email inbox until 03/07 @ 6:00am. I have included it here so you can see what time it arrived. Thank you for taking the time. From : homeworkhelp@coursehero.com Subject : I answered your question on Course Hero To : carmex2008@embarqmail.com Reply To : homeworkhelp@coursehero.com Mon, Mar 07, 2011 06:00 AM I do have a question however, I know I committed to a $40.00 deposit for the answers, but did not receive them in time. I would still like to pay you and add an additional $40.00 for a total of $80.00 to be paid, but could you help me with something else that is due this Saturday? Today is Tuesday, 03/08, I would need it to me by Friday to proof read and adjust with my information. It is an argumentative paper on "Are charter schools/vouchers detrimental to the American educational system?" Here are the instructions: Select one of the above issues and construct a six-to eight-page argument in which you use the following format. Your paper will have three parts: Thesis, Anti-thesis, and Synthesis. Mark each section clearly with a section header. The sources used in the two sections may overlap and need not be completely different. No orphan sources: if a source is in the reference list, it must be quoted in the text, either a direct quote or paraphrased; if a source is quoted in the text, it must be in the reference list. Popular websites such as Wikipedia are not considered suitable as academic sources. You are to use the Ashford online library databases for your academic resources. If you do want to use articles from the Web, start with Google Scholar. Part I: Thesis Part I is your thesis. Write a short essay (two-to three- pages) taking one side or the other on the issue you select. You want to state very clearly the reasons you are taking the position you take, but you don?t have to defend it thoroughly (that?s what Part III is for). Part II: Anti-thesis Part II is the anti-thesis. Write a critical analysis in reply (two-to three- pages) to your essay in Part I by imagining that you oppose what the writer of Part I has stated. Careful reasoning is required. YOU MUST USE AT LEAST 3-5 academic/scholarly sources in the formation of this section. Remember that you are playing the ?devil?s advocate,? but what every student must realize is that a sound critical thinker can argue any side of an argument because he/she is diligent and flexible in his/her thinking. Part III: Synthesis Part III is the synthesis (about two pages). Revisit Part I and, taking into account all the criticisms of Part II, write a thorough defense of your position. Again, like Part II, you must use at least 3-5 academic/scholarly sources in the formation of this section. Writing the Argumentative Paper The Argumentative Paper: Must be six-to eight-double-spaced pages in length and formatted according to APA style as outlined in the approved style guide. Must include a title page (in addition to the six-to eight- content pages) that includes the following in sequence: Title of paper Student?s name Course name Instructor?s name Date submitted Must include an introductory paragraph with a succinct thesis statement. Must address the topic of the paper with critical thought. Must conclude with a restatement of the thesis and a conclusion paragraph. Must use APA style as outlined in the approved APA style guide to document all sources. Must include a Reference page (in addition to the six-to eight-content pages) that is completed according to APA style as outlined in the approved style guide. I have the title page, just need the content paper and references used and correct citation. We use Turnitin to make sure it is original to avoid plagarism. Please let me know if this is something you would be willing to do. Thank You Rose
Question 3
The S&L industry had an extremely difficult time during the 1980s, as interest rate levels reached new highs. The following problem illustrates the nature of these difficulties. (NOTE: This problem assumes you are familiar with the relationship between the market values of long-term, fixed-income securities and changes in the market rate of interest.) Assume an S&L's balance sheet is as follows. While this balance sheet is obviously over-simplified, it represents an approximation of the financial condition of many S&Ls. All values represent market values. Assets: Liabilities and Equity: Mortgage Loans $1,000,000 Deposits $1,300,000 Other Assets 600,000 Equity 300,000 Total Assets $1,600,000 Total L&E $1,600,000 Assume the mortgage loan portfolio consists of 30-year, fixed-rate mortgages with an average interest rate of 5% per year. The present value of these mortgages (their principal) is currently $1,000,000. 1) Find the monthly payment for this mortgage loan portfolio, using Excel's PMT function. (HINT: Set PV = outstanding principal, NPER = the life of the mortgages (in months), and RATE = the average interest rate (per month) for the mortgage loan portfolio.) 2) Use answer to part (1) to determine the new market value of the mortgage loan portfolio, assuming that the market rate of interest rises to 9% per year. (HINT: Use Excel to find the PV of this portfolio, defining NPER as above, RATE = 9% per year divided by 12, and PMT = the value you obtained in part (1) In the 1980s, actual market rates of interest rose by much more than this, with mortgage rates in the range of 12% or more uncommon. 3) Calculate the decline in market value of the mortgage loan portfolio that occurred by comparing answer in part (2) to the value of the portfolio as revealed in the balance sheet above. 4) Compare this decline in market value to the amount of equity on the S&L's balance sheet. Is the institution now insolvent? Explain.
Question 4
I need the following work done. It is for an accounting class and must be done in excel. Fancy Distributing Company of Atlanta sells fans and heaters to retail outlets throughout the Southeast. Joe Fancy, the president of the company, is thinking about changing the firm?s credit policy to attract customers away from competitors. The present policy calls for 3/15, net 30 cash discount. The new policy would call for a 5/10, net 45 cash discount. Currently, 45 percent of Fancy customers are taking the discount, and it is anticipated that this number would go up to 65 percent with the new discount policy. It is further anticipated that annual sales would increase from a level of $150,000 to $575,000 as a result of the change in the cash discount policy. The increased sales would also affect the inventory level. The average inventory carried by Logan is based on a determination of an EOQ. Assume sales of fans and heaters increase from 10,500 to 22,750 units. The ordering cost for each order is $175, and the carrying cost per unit is $2.50 (these values will not change with the discount). The average inventory is based on EOQ/2. Each inventory has an average cost of $12.50. Cost of goods sold is equal to 60 percent of net sales; general and administrative expenses are 15 percent of net sales; and interest payments of 14 percent will only be necessary for the increase in the accounts receivable and inventory balances. Taxes will be 34 percent of before-tax income.
Question 5
A random sample of 36 students at a community college showed an average age of 25 years. Assume the ages of all students at the college are normally distributed with a standard deviation of 1.8 years. The 98% confidence interval for the average age of all students at this college is 15.2 to 24.8 19.2 to 20.8 19.216 to 20.784 21.2 to 22.8 Question 6 10 points Save Exhibit 8-1 In order to estimate the average time spent on the computer terminals per student at a local university, data were collected from a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.2 hours. Refer to Exhibit 8-1. The standard error of the mean is 7.5 0.014 0.160 0.133 Question 7 10 points Save Exhibit 8-1 In order to estimate the average time spent on the computer terminals per student at a local university, data were collected from a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.2 hours. Refer to Exhibit 8-1. With a 0.95 probability, the margin of error is approximately 0.26 1.96 0.21 1.64 Question 8 10 points Save Exhibit 8-1 In order to estimate the average time spent on the computer terminals per student at a local university, data were collected from a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.2 hours. Refer to Exhibit 8-1. If the sample mean is 9 hours, then the 95% confidence interval is approximately 7.04 to 110.96 hours 7.36 to 10.64 hours 7.80 to 10.20 hours 8.74 to 9.26 hours Question 9 10 points Save Exhibit 8-2 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is one minute. Refer to Exhibit 8-2. The standard error of the mean equals 0.001 0.010 0.100 1.000 Question 10 10 points Save Exhibit 8-2 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is one minute. Refer to Exhibit 8-2. With a .95 probability, the sample mean will provide a margin of error of 0.95 0.10 .196 1.96 Question 11 10 points Save Exhibit 8-2 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is one minute. Refer to Exhibit 8-2. If the confidence coefficient is reduced to 0.80, the standard error of the mean will increase will decrease remains unchanged becomes negative Question 12 10 points Save Exhibit 8-2 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is one minute. Refer to Exhibit 8-2. The 95% confidence interval for the average checkout time of all customers is 3 to 5 1.36 to 4.64 2.804 to 3.196 1.04 to 4.96 Question 13 10 points Save Exhibit 8-3 A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of speeds of all cars on this section of highway is normally distributed, with a standard deviation of 13.5 mph. Refer to Exhibit 8-3. If we are interested in determining an interval estimate for m at 86.9% confidence, the z value to use is 1.96 1.31 1.51 2.00 Question 14 10 points Save Exhibit 8-3 A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of speeds of all cars on this section of highway is normally distributed, with a standard deviation of 13.5 mph. Refer to Exhibit 8-3. The value to use for the standard error of the mean is 13.5 9 2.26 1.5 Question 15 10 points Save Exhibit 8-3 A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of speeds of all cars on this section of highway is normally distributed, with a standard deviation of 13.5 mph. Refer to Exhibit 8-3. The 86.9% confidence interval for m is 46.500 to 73.500 57.735 to 62.265 59.131 to 60.869 50 to 70 Question 16 10 points Save Exhibit 8-3 A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of speeds of all cars on this section of highway is normally distributed, with a standard deviation of 13.5 mph. Refer to Exhibit 8-3. If the sample size was 25 (other factors remain unchanged), the interval for m would not change become narrower become wider become zero Question 17 10 points Save A 95% confidence interval for a population mean is determined to be 100 to 120. If the confidence coefficient is reduced to 0.90, the interval for m becomes narrower becomes wider does not change becomes 0.1 Question 18 10 points Save If we change a 95% confidence interval estimate to a 99% confidence interval estimate, we can expect the width of the confidence interval to increase width of the confidence interval to decrease width of the confidence interval to remain the same sample size to increase Question 19 10 points Save From a population that is normally distributed with an unknown standard deviation, a sample of 25 elements is selected. For the interval estimation of m, the proper distribution to use is the standard normal distribution z distribution t distribution with 26 degrees of freedom t distribution with 24 degrees of freedom Question 20 10 points Save From a population that is not normally distributed and whose standard deviation is not known, a sample of 50 items is selected to develop an interval estimate for m. Which of the following statements is true? The standard normal distribution can be used. The t distribution with 50 degrees of freedom must be used. The t distribution with 49 degrees of freedom must be used. The sample size must be increased in order to develop an interval estimate. Question 21 10 points Save As the number of degrees of freedom for a t distribution increases, the difference between the t distribution and the standard normal distribution becomes larger becomes smaller stays the same None of the other answers are correct. Question 22 10 points Save The t value with a 95% confidence and 24 degrees of freedom is 1.711 2.064 2.492 2.069 Question 23 10 points Save A sample of 26 elements from a normally distributed population is selected. The sample mean is 10 with a standard deviation of 4. The 95% confidence interval for m is 6.000 to 14.000 9.846 to 10.154 8.384 to 11.616 8.462 to 11.538 Question 24 10 points Save A random sample of 36 students at a community college showed an average age of 25 years. Assume the ages of all students at the college are normally distributed with a standard deviation of 1.8 years. The 98% confidence interval for the average age of all students at this college is 24.301 to 25.699 24.385 to 25.615 23.200 to 26.800 23.236 to 26.764 Question 25 10 points Save A random sample of 25 statistics examinations was taken. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is 70.02 to 81.98 69.82 to 82.18 70.06 to 81.94 69.48 to 82.52 Question 26 10 points Save A random sample of 25 employees of a local company has been measured. A 95% confidence interval estimate for the mean systolic blood pressure for all company employees is 123 to 139. Which of the following statements is valid? 95% of the sample of employees has a systolic blood pressure between 123 and 139. If the sampling procedure were repeated many times, 95% of the resulting confidence intervals would contain the population mean systolic blood pressure. 95% of the population of employees has a systolic blood pressure between 123 and 139. If the sampling procedure were repeated many times, 95% of the sample means would be between 123 and 139. Question 27 10 points Save To estimate a population mean, the sample size needed to provide a margin of error of 2 or less with a .95 probability when the population standard deviation equals 11 is 10 11 116 117 Question 28 10 points Save It is known that the population variance equals 484. With a 0.95 probability, the sample size that needs to be taken to estimate the population mean if the desired margin of error is 5 or less is 25 74 189 75 Question 29 10 points Save Using an a = 0.04, a confidence interval for a population proportion is determined to be 0.65 to 0.75. If the level of significance is decreased, the interval for the population proportion becomes narrower becomes wider does not change Not enough information is provided to answer this question. Question 30 10 points Save For which of the following values of p is the value of p(1 - p) maximized? p = 0.99 p = 0.90 p = 1.0 p = 0.50 Question 31 10 points Save A random sample of 25 observations was taken from a normally distributed population. The average in the sample was 84.6 with a variance of 400. Construct a 90% confidence interval for m. 77.756 to 91.444 73.412 to 95.788 78.021 to 91.179 79.474 to 89.726 Question 32 10 points Save You are given the following information obtained from a random sample of 4 observations taken from a large, normally distributed population. 25 47 32 56 Construct a 95% confidence interval for the mean of the population. 26.210 to 53.790 28.427 to 51.573 28.058 to 51.942 17.613 to 62.387 Question 33 10 points Save If the standard deviation of the lifetimes of vacuum cleaners is estimated to be 300 hours, how large of a sample must be taken in order to be 97% confident that the margin of error will not exceed 40 hours? 300 264 265 299 Question 34 10 points Save A researcher is interested in determining the average number of years employees of a company stay with the company. If past information shows a standard deviation of 7 months, what size sample should be taken so that at 95% confidence the margin of error will be 2 months or less? 50 48 47 30 Question 35 10 points Save In a random sample of 500 college students, 23% say that they read or watch the news every day. Develop a 90% confidence interval for the population proportion. 0.199 to 0.261 0.184 to 0.276 0.189 to 0.271 0.225 to 0.235 Question 36 10 points Save Six hundred consumers were asked whether they would like to purchase a domestic or a foreign automobile. Their responses are given below. Preference Frequency Domestic 240 Foreign 360 Develop a 95% confidence interval for the proportion of all consumers who prefer to purchase domestic automobiles. 0.6180 to 0.7154 0.3671 to 0.4329 0.3608 to 0.4392 0.3750 to 0.4250 Question 37 10 points Save A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 32 current students discovering that 12 will return for summer school. With a 0.95 probability, how large of a sample would have to be taken to provide a margin of error of 3% or less? 1001 1000 32 50 Question 38 10 points Save A health club annually surveys its members. Last year, 33% of the members said they use the treadmill at least 4 times a week. How large of sample should be taken this year to estimate the percentage of members who use the treadmill at least 4 times a week? The estimate is desired to have a margin of error of 5% with a 95% level of confidence. 340 50 30 15
