Question: A sample of 18 items provides a sample standard deviation of 6. (1). Compute the 90% confidence interval estimate of the population standard deviation. (2).

A sample of 18 items provides a sample standard deviation of 6.

(1). Compute the 90% confidence interval estimate of the population standard deviation.

(2). Compute the 95% confidence interval estimate of the population variance.

Please Round Answers 4 decimal places when possible.

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