(Solved by Humans)-A university investigation was conducted to determine whether
Question
A university investigation was conducted to determine whether women and men complete medical school in significantly different amounts of time, on the average. Two independent random samples were selected and the following summary information concerning times to completion of medical school computed:
|
| Women | Men |
| Sample Size | 90 | 100 |
| Sample Mean | 8.4 years | 8.5 years |
| Sample Standard Deviation | 0.6 years | 0.5 years |
Compute the test statistic to test the null and alternate hypothesis:
H0: vs. Ha: mu1-mu2 not equal 0
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