Solved: A hypothesis will be used to test that a

Chapter 9, Problem 34E

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QUESTION:

A hypothesis will be used to test that a population mean equals 5 against the alternative that the population mean is less than 5 with known variance $$\sigma$$. What is the critical value 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 5 against the alternative that the population mean is less than 5 with known variance $$\sigma$$. What is the critical value 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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