In a test of hypothesis, the null hypothesis is that the population mean is equal to 24 and the alternative hypothesis is that the population mean is not equal to 24. The test is to be made at the 5% significance level. The critical values of z are: a. –2.07 and 2.07 b. –1.65 and 1.65 c. –1.96 and 1.96           d. –2.17 and 2.17

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In a test of hypothesis, the null hypothesis is that the population mean is equal to 24 and the alternative hypothesis is that the population mean is not equal to 24. The test is to be made at the 5% significance level. The critical values of z are:

a. –2.07 and 2.07

b. –1.65 and 1.65

c. –1.96 and 1.96          

d. –2.17 and 2.17

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Step 1

The null and alternative hypothesis is,

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The type of test is two tailed test

The type of test statistic is used in this problem is one sample z test

 

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