Essay
Copper Pipes Narrative
A manufacturer of copper pipes must produce pipes with a diameter of precisely 5 cm. The firm's quality inspector wants to test the hypothesis that pipes of the proper size are being produced. Accordingly, a simple random sample of 100 pipes is taken from the production process. The sample mean diameter turns out to be 4.98 cm and the sample standard deviation 0.2 cm. Using a significance level of 
= 0.05, test the appropriate hypotheses.
-Refer to Copper Pipes Narrative. Calculate the p-value and write your conclusion.
Correct Answer:
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p-value = 2p(z < -1) = 2(0.50 - 0.3413) ...View Answer
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Correct Answer:
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