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 1.8.

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 1.8. The distribution of DVDs watched per month 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 .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 alternate hypothesis.

(b) State the decision rule.

(c) Compute the value of the test statistic.

(d) What is your decision regarding H0?

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

Step by Step Solution

3.41 Rating (186 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a H o 68 H 1 ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

356-M-S-H-T (210).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!