The following figure portrays the appearance of a distribution of efficiency ratings for employees of Nale Nail

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The following figure portrays the appearance of a distribution of efficiency ratings for employees of Nale Nail Works Inc.:image

a.?Estimate the mean efficiency rating.b.?Estimate the standard deviation to the nearest whole number.c.?About 68% of the efficiency ratings are between what two values?d. About 95% of the efficiency ratings are between what two values?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Basic Statistics For Business & Economics

ISBN: 9781259268939

6th Canadian Edition

Authors: Douglas A. Lind, William G Marchal, Samuel A. Wathen, Carol Ann Waite

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