Question: The sign test is performed to test H0: m = 250 versus H1: m < 250. There are 15 plus signs, 36 minus signs, and

The sign test is performed to test H0: m = 250 versus H1: m < 250.

There are 15 plus signs, 36 minus signs, and 6 zeros.

a. What is the value of the test statistic?

b. Is H0 rejected at the α = 0.05 level?

c. Is H0 rejected at the α = 0.01 level?

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