Suppose that we wish to test h0 m 20 versus ha m 20 where, Ask an Expert

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Suppose that we wish to test H0: m = 20 versus Ha: m 20, where s is known to equal 7. Also, suppose that a sample of n = 49 measurements randomly selected from the population has a mean of x = 18.

a. Calculate the value of the test statistic z.

b. By comparing z with a critical value, test H0 versus Ha at a = .01.

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 = 20 is false and Ha: m 20 is true?

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Applied Statistics, Statistics

Category:- Applied Statistics
Reference No.:- M91582809

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