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Mathematics, 19.07.2021 18:10 dbn4everloved8
In order to determine whether or not there is a significant difference between the hourly wages of two companies, two independent random samples were selected and the following statistics were calculated. Company A Company B Sample size 80 60 Sample mean $6.75 $6.25 Population standard deviation $1.00 $0.95 Refer to Exhibit 10-8. The null hypothesis . a. should be rejected b. should not be rejected c. should be revised d. should be retested
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