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Question: A manufacturer of barometers believes that the production process yields 2.2% defectives. In a random sample of 250 barometers, 7 are defective.

a. To test whether the manufacturer's belief is confirmed by this sample, calculate the PROB-VALUE for a test of hypothesis of H0: π = .022.

b. At which of the following significance levels will the null hypothesis be rejected? (i) 0.20, (ii) 0.10, (iii) 0.05, (iv) 0.01, (v) 0.001.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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