A manufacturer claims that in a process of producing
Chapter 25, Problem 25.7(choose chapter or problem)
A manufacturer claims that in a process of producing kitchen knives, only 2.5% of the knives are dull. Test the claim against the alternative that more than 2.5% of the knives are dull, using a sample of 400 knives containing 17 dull ones. (Use ex = 5%.)
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