A random sample of 12 second-year university students enrolled in a business statistics course was drawn....

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A random sample of 12 second-year university students enrolledin a business statistics course was drawn. At the course'scompletion, each student was asked how many hours he or she spentdoing homework in statistics. The data are listed below. 28 18 1520 14 25 21 29 20 23 24 26 It is known that the population standarddeviation is 6. The instructor has recommended that students devote2 hours per week for the duration of the 12-week semester, for atotal of 24 hours.

Test to determine whether there is evidence at the 0.01significance level that the average student spent less than therecommended amount of time. Fill in the requested informationbelow.

A. The value of the standardized test statistic: Note: For thenext part, your answer should use interval notation. An answer ofthe form (−∞,a) is expressed (-infty, a), an answer of the form(b,∞) is expressed (b, infty), and an answer of the form(−∞,a)∪(b,∞) is expressed (-infty, a)U(b, infty).

B. The rejection region for the standardized test statistic:

C. The p-value

D. Your decision for the hypothesis test

Reject H0

Do Not Reject H1

Reject H1

Do Not Reject H0.

Answer & Explanation Solved by verified expert
4.0 Ratings (573 Votes)
The calculations for the mean and the standard deviation of thesample are given after the hypothesis test From the givendata 21917 s 4795 n 12TheHypothesisH0 24Ha 24This is a Left Tailed TestA The TestStatistic Since the population    See Answer
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