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Write the null and alternative hypotheses to test each of the following situatio

ID: 3264759 • Letter: W

Question

Write the null and alternative hypotheses to test each of the following situations. a) An online electronics store is concerned about the timeliness of the delivery of their products. The VP of Operations and Marketing recently stated that she wanted the percentage of products delivered on time to be greater than 85%, and she wants to know if the company has succeeded. b) A realty company recently announced that the proportion of houses taking less than six months to sell is now less than 44%. c) A financial firm's accounting reports have an error rate below 1%. a) Let p be the proportion of products delivered on time. Choose the correct answer below. A. H_0: p = 0.85 vs. H_A: p 0.44 vs. H_A: p = 0.44 B.H_0: p 0.44 D. H_0: p = 0.44 vs. H_A: p 0.01 vs. H_A: p = 0.01 F. H_0: p. = 0.01 vs. H_A: p

Explanation / Answer

Ans:

(a) Option D.

(b) Option D.

(c) Option F.