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Do marketing majors at your school study more than, less than, or about the same as marketing majors at other schools?

The Washington Post reported the results of the National Survey of Student Engagement that found marketing majors studied an average of 12.1 hours per week.  Set up a hypothesis test to try to prove that the mean number of hours studied by marketing majors at your school is different from the marketing majors at your school is different from the 12.1-hour-per-week benchmark reported by the Washington Post.
A.  State the null and alternative hypothesis.
B.  What is a Type I error for your test?
C.  What is a Type II error for your test?
 
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1 Answer

A. H0 : μ= 12.1
    H1 : μ≠ 12.1
B. Type I Error: Reject H0 that the mean hours studied is 12.1 hours, when it was true.
C. Type II Error: Fail to reject H0 that the mean hours studied is 12.1 hours, when it was false.

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