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a local university, a sample of 49 evening students was selected in order to determine whether...

  1. 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. Determine the p-value and test these hypotheses. Let a = .05.
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Answer #1

Z test hypothesis calculation.

P value is 0.000063 .

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