Which has already made the at least 3000 pounds claim

Reference no: EM131407153

A manufacturer informs a customer's design engineers that the mean tensile strength of its rivets is at least 3000 pounds. A test is set up to measure the tensile strength of a sample of rivets, with the null and alternative hypotheses, H₀ : μ ≥ 3000 and H₁: μ α = 0.20 ) or a numerically very low (e.g., α = 0.20) level of significance to be specified for the test.

a. The marketing director for a major competitor of the rivet manufacturer.

b. The rivet manufacturer's advertising agency, which has already made the "at least 3000 pounds" claim in national ads.

Reference no: EM131407153

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