[The following Information applies to the questions displayed below A recent nat

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[The following Information applies to the questions displayed below A recent national survey found that high schpol students watched an average (mean) of 71 DVDs per month with a population standard deviation of 1.00. A random sample of 41 college students revealed that the mean number of DVDs watched last month was 6.60. At the 05 significance level, can we conclude that college students watch fewer DVDs a month than high school students? 18. value: Required Info 2.00 points (a) State the null hypothesis and the alternate hypothesis. eBook & Resources

Explanation / Answer

18 ) option A) is correct

19)
P(Z <z*) = 0.05
z* = -1.645
reject the null is TS < -1.65
option B) is correct

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