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At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21. The average age of the students in the sample was 23 with a standard deviation of 3.5.

a) Formulate the hypotheses for this problem.

b) Compute the test statistic.

c) Using the p-value approach, what is your conclusion? Let α = .05.

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Category:- Statistics and Probability
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