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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Economics: Profits per Employee How productive are U.S. workers? One way to answer this question is to study annual profits per employee. A random sample of companies in computers (I), aerospace (II), heavy equipment (III), and broadcasting (IV) gave the following data regarding annual profits per employee (units in thousands of dollars)
|
I |
II |
III |
IV |
|
27.8 |
13.3 |
22.3 |
17.1 |
|
23.8 |
9.9 |
20.9 |
16.9 |
|
14.1 |
11.7 |
7.2 |
14.3 |
|
8.8 |
8.6 |
12.8 |
15.2 |
|
11.9 |
6.6 |
7.0 |
10.1 |
|
 |
19.3 |
 |
9.0 |
Shall we reject or not reject the claim that there is no difference in population mean annual profits per employee in each of the four types of companies? Use a 5% level of significance.
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