(Solved by Humans)-At one school, the mean amount of time that tenth-graders spend
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At one school, the mean amount of time that tenth-graders spend watching television each week is 18.4 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.
Formulate the null and alternative hypotheses for the study described.
| A. Ho: ? = 18.4 hours?????H a : ? ? 18.4 hours |
| B. Ho: ? = 18.4 hours?????H a : ? < 18.4 hours |
| C. Ho: ? ? 18.4 hours?????H a : ? < 18.4 hours |
| D. Ho: ? = 18.4 hours?????H a : ? > 18.4 hours |
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This question was answered on: 10 May, 2025
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