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In: Statistics and Probability

The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of...

The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of $3629.Assume the sample is from a normally distributed population. Construct a confidence interval for the population variance sigma squaredσ2 and the population standard deviation sigmaσ. Use a 95% level of confidence. Interpret the results.

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Expert Solution

We are 95% confident that the true proportion variance and the true population SD lie in the above Intervals.

Note: Chi square values are from the chi square distribution tables.

orchestra answered 2 years ago
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