In Testing the Hypotheses:
H0: μ = 22
HA: μ $\bar { X }$

question 15

Essay

In testing the hypotheses:
H0: μ = 22
HA: μ < 22
the following information was given:  = 15, n = 50, $\bar { X }$ = 17.5,  = 0.04.
a. Calculate the value of the test statistic.
b. Set up the rejection region.
c. Determine the p-value.
d. Interpret the result.

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