Xr10-30 A survey of 400 statistics professors was undertaken. Each professor was asked how much time was

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Xr10-30 A survey of 400 statistics professors was undertaken. Each professor was asked how much time was devoted to teaching graphical techniques.

We believe that the times are normally distributed with a standard deviation of 30 minutes. Estimate the population mean with 95% confidence.

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Statistics For Management And Economics

ISBN: 9781133420774

9th Edition

Authors: Gerald Keller, Kenneth C Louden

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