Refer to Exercise 10.30. Calculate the value of ? for the
Chapter 10, Problem 39E(choose chapter or problem)
Problem 39E
Refer to Exercise 10.30. Calculate the value of β for the alternative pa = .15.
Reference
A manufacturer claimed that at least 20%of the public preferred her product. A sample of 100 persons is taken to check her claim. With α = .05, how small would the sample percentage need to be before the claim could legitimately be refuted? (Notice that this would involve a one-tailed test of the hypothesis.)
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