Question: The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of $3725. Use an 80% level of confidence. Assume the

The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of $3725. Use an 80% level of confidence.

Assume the sample is from a normally distributed population and construct the indicated confidence intervals for

(a) The population variance σ2

(b) The population standard deviation σ. Interpret the results.

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