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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 years. The population standard deviation is known to be 3.5 years. Use the critical value approach to determine whether or not the average age of the evening students is significantly different from 21. Use a 0.01 level of significance.

HO: μ "State the null hypothesis."
HA: μ "State the alternativel hypothesis."

"State the rejection rule"

"Compute the test statistic for the test stated in the problem"

"State if you reject or fail to reject the null hypothesis."

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9417099

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