A hypothesis will be used to test that a population mean

Chapter 9, Problem 32E

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QUESTION:

A hypothesis will be used to test that a population mean equals 7 against the alternative that the population mean does not equal 7 with known variance \(\sigma\). What are the critical values for the test statistic \(Z_{0}\) for the following significance levels?

(a) 0.01      (b) 0.05      (c) 0.10

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QUESTION:

A hypothesis will be used to test that a population mean equals 7 against the alternative that the population mean does not equal 7 with known variance \(\sigma\). What are the critical values for the test statistic \(Z_{0}\) for the following significance levels?

(a) 0.01      (b) 0.05      (c) 0.10

ANSWER:

Step 1 of 5

Given,

The hypothesis used to test:

We have to find the critical value for the test statistic  corresponding to each of the significance level:

 

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