Calculate the value of the test statistic z

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Reference no: EM13909871

Suppose that we wish to test H0: m = 40 versus Ha: m * 40, where s is known to equal 18. Also, suppose that a sample of n = 81 measurements randomly selected from the population has a mean of x = 35.

a. Calculate the value of the test statistic z.

b. By comparing z with critical values, test H0 versus Ha at a = .05.

c. Calculate the p-value for testing H0 versus Ha.

d. Use the p-value to test H0 versus Ha at each of a = .10, .05, .01, and .001.

e. How much evidence is there that H0: m = 40 is false and Ha: m * 40 is true?

Reference no: EM13909871

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