Question: According to a national magazine, college students spend, on average, 20 hours or more per week watching television. As a researcher, you are somewhat skeptical of this claim and would like to prove that college students spend, on average, less than 20 hours per week viewing television. Consequently, you select a random sample of 36 college students and find the mean hours per week watching television is 18. The population standard deviation is known to be 6.5 hours.

1. Formulate and test the appropriate hypotheses using the p-value approach. What is the p-value for the test? Would you reject the null hypothesis at a = 0.05? What would be your conclusion?
2. Would you reject the null hypothesis at a = 0.01? What would be your conclusion?
3. How strong is the evidence against Ho? [Refer to Unit 4, Section 7, in the Study Guide]

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