An Introduction to Mathematical Statistics and Its Applications (6th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
6th Edition
ISBN: 9780134114217
Author: Richard J. Larsen, Morris L. Marx
Publisher: PEARSON
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Chapter 12.4, Problem 4Q
To determine

the hypothesis that small- and medium- size companies are as profitable as large companies. Let α=0.10.

Size of Assets (billons of $)
$50 or Less Between $51 and $100 Greater than $100
7.2 11.3 14.8
6.5 5.6 11.3
5.7 5.3 9.2
4.4 5.3 4.8
3.4 10.4 3.9
3.4 6.2 10.2
7.8 5.3 7.3

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