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CI for the variance of the transit time for all goods

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Reference no: EM131694296

Question: In problem, give a 95% confidence interval for the variance of the transit time for all goods.

Problem: A transportation company wants to estimate the average length of time goods are in transit across the country. A random sample of 20 shipments gives = 2.6 days and s = 0.4 day. Give a 99% confidence interval for the average transit time.

Reference no: EM131694296

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