A manufacturer of copper pipes must produce pipes with a diameter of precisely 5 inches. 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 inches and the sample standard deviation 0.2 inches. Using a significance level of = 0.05, test the appropriate hypotheses.
Find the p-value for the test.
Test statistic = ______________
p-value = ______________
Conclusion: ______________
Interpretation: __________________________________________

Question

A manufacturer of copper pipes must produce pipes with a diameter of precisely 5 inches. 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 inches and the sample standard deviation 0.2 inches. Using a significance level of  = 0.05, test the appropriate hypotheses.
Find the p-value for the test.
Test statistic = ______________
p-value = ______________
Conclusion: ______________
Interpretation: __________________________________________

Quizplus · Accepted Answer

The Answer of A manufacturer of copper pipes must produce pipes with a diameter of precisely 5 inches. 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 inches and the sample standard deviation 0.2 inches. Using a significance level of  = 0.05, test the appropriate hypotheses.
Find the p-value for the test.
Test statistic = ______________
p-value = ______________
Conclusion: ______________
Interpretation: __________________________________________

A Manufacturer of Copper Pipes Must Produce Pipes with a Diameter