Data for tire life was described in Exercise 8-29. The sample standard deviation was 3645.94 kilometers and
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Data for tire life was described in Exercise 8-29. The sample standard deviation was 3645.94 kilometers and n = 16.
(a) Can you conclude, using α = 0.05, that the standard deviation of tire life is less than 4000 kilometers? State any necessary assumptions about the underlying distribution of the data. Find the P-value for this test.
(b) Explain how you could answer the question in part (a) by constructing a 95% one-sided confidence interval for σ.
DistributionThe word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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