Question: A study is designed to test the hypotheses Ho 26 versus H 26 A random sample of 50 units was selected from a specified population

A study is designed to test the hypotheses Ho 26 versus H 26 A random sample of 50 units was selected from a specified population and the measurements were summarized to y 25 9 and s 7 6 a With a 05 is there substantial evidence that the population mean is less than 26 b Calculate the probability of making a Type II error if the actual value of the population mean is at most 24 c If the sample size is doubled to 100 what is the probability of making a Type II error if the actual value of the population mean is at most 24

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