Question: Consider the following competing hypotheses and sample data. H0: m = 20 HA: m 20 n = 7 T- = 2 T+ = 26

Consider the following competing hypotheses and sample data.

H0: m = 20

HA: m ≠ 20

n = 7

T- = 2

T+ = 26

a. Specify the decision rule at the 5% significance level.

b. What is the conclusion? Explain.

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