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Confidence interval for the average value of all works

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Reference no: EM131372496

An art dealer wants to estimate the average value of works of art of a certain period and type.

A random sample of 20 works of art is appraised. The sample mean is found to be $5,139 and the sample standard deviation $640. Give a 95% confidence interval for the average value of all works of art of this kind.

Reference no: EM131372496

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