My Math Forum Confidence interval for the population standard deviation?

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 November 13th, 2018, 01:19 AM #1 Newbie   Joined: Nov 2018 From: USA Posts: 1 Thanks: 0 Confidence interval for the population standard deviation? Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation. Assume that the population has a normal distribution. The hockey coach selected eight players at random and timed how long each player took to finish their exercises. The times (in minutes) were: 8, 15, 12, 10, 10, 7, 9, and 9. Find a 90 percent confidence interval for the population standard deviation.

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