The following table of grouped data summarizes results from a study of 150 regional companies in the

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The following table of grouped data summarizes results from a study of 150 regional companies in the wood products industry. Each company reported the number of full-time workers it employs:

a. Draw the histogram.
b. Estimate the mean, the variance and the standard deviation of the employee data.

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Understanding Business Statistics

ISBN: 978-1118145258

1st edition

Authors: Stacey Jones, Tim Bergquist, Ned Freed

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Question Posted: Jul 16, 2015 03:51 PM

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The following table of grouped data summarizes results from a study of 150 regional companies in the

Question:

No. of Employees 0 to under 10 10 to under 20 20 to under 30 30 to under 40 40 to under 50 50 to under 60 60 to under 70 Mid-point 15 25 35 45 No. of Firms 20 50 30 20 15 10 65 Total 150

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a b Estimated Mean 257 employee...View the full answer

Understanding Business Statistics

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