Question: You are given the following null and alternative hypotheses: a. If the true population mean is 4,345, determine the value of beta. Assume the population

You are given the following null and alternative hypotheses:

a. If the true population mean is 4,345, determine the value of beta. Assume the population standard deviation is known to be 200 and the sample size is 100.
b. Referring to part a, calculate the power of the test.
c. Referring to parts a and b, what could be done to increase power and reduce beta when the true population mean is 4,345? Discuss.
d. Indicate clearly the decision rule that would be used to test the null hypothesis, and determine what decision should be made if the sample mean were 4,337.50.

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a 4350 1645200 431710 Pz 431710 4345 200 Pz 140 05 04192 09192 b Power 1 Beta ... View full answer

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