Find confidence interval for standard deviation

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Reference no: EM13118120

Find the 90% confidence interval for the standard deviation for the time it takes an inspector to check a bus for safety if a sample of 27 buses has a standard deviation of 6.8 minutes.

Reference no: EM13118120

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Find confidence interval for standard deviation : Find the 90% confidence interval for the standard deviation for the time it takes an inspector to check a bus for safety if a sample of 27 buses has a standard deviation of 6.8 minutes.

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