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Question
Exhibit 10-8In order to determine whether or not there is a significant difference between the hourly wages of two companies, the following data have been accumulated.
| Company A | Company B | |
| Sample size | 80 | 60 |
| Sample mean | $16.75 | $16.25 |
| Population standard deviation | $1.00 | $0.95 |
a. 20
b. 0.50
c. 0.25
d. 1.00
Answer
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