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A simple random sample of size n = 40 is drawn from a

Chapter 6, Problem 5AYU

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QUESTION:

A simple random sample of size n = 40 is drawn from a population. The sample mean is found to be 108.5, and the sample standard deviation is found to be 17.9. Is the population mean greater than 100 at the \(\alpha = 0.05\) level of significance?

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QUESTION:

A simple random sample of size n = 40 is drawn from a population. The sample mean is found to be 108.5, and the sample standard deviation is found to be 17.9. Is the population mean greater than 100 at the \(\alpha = 0.05\) level of significance?

ANSWER:

Step 1 of 2

Given  n = 40 ,

                   Mean  = 108.5,

           standard deviation s  = 17.9.

               

         Hypothesis are given by

                 

                 

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