SOLUTION: Find the 95% confidence interval for the standard deviation of the lengths of pipes if a sample of 11 pipes has a standard deviation of 12 inches.
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Question 1040406: Find the 95% confidence interval for the standard deviation of the lengths of pipes if a sample of 11 pipes has a standard deviation of 12 inches.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
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= [8.38, 21.06]
where is the chi-square distribution with df 11-1 = 10 and .
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