Confidence interval for average value of all properties

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Reference no: EM131372398

In given problem, suppose that a 99% confidence interval is required. Compute the new interval, and compare it with the 95% confidence interval you computed in given problem.

Problem
A real estate agent needs to estimate the average value of a residential property of a given size in a certain area. The real estate agent believes that the standard deviation of the property values is σ = $5,500.00 and that property values are approximately normally distributed. A random sample of 16 units gives a sample mean of $89,673.12. Give a 95% confidence interval for the average value of all properties of this kind.

Reference no: EM131372398

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