A recent national survey found that high school students watched an average (mean) of 6.8 DVDs per

Question:

A recent national survey found that high school students watched an average (mean) of 6.8 DVDs per month, with a population standard deviation of 0.5 DVDs per month. The distribution of the number of DVDs watched follows the normal distribution. A random sample of 36 college students revealed that the mean number of DVDs watched last month was 6.2. At the 0.05 significance level, can we conclude that college students watch fewer DVDs a month than high school students?

(a) State the null hypothesis and the alternative hypothesis.

(b) State the decision rule.

(d) What is your decision regarding H₀?

(e) What is the p-value? Interpret it.

Distribution
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