I am interested in whether OSU males and females have the same grade point average. Use the table to perform a difference of means test and tell me the result of the test. (Remember you have to calculate the variance for each variable using the equation with n-1 in the denominator)
Obs |
Males |
Females |
1 |
3.48 |
2.39 |
2 |
2.05 |
2.89 |
3 |
3.52 |
1.84 |
4 |
2.77 |
1.77 |
5 |
3.96 |
2.67 |
6 |
2.20 |
1.98 |
7 |
2.50 |
3.92 |
8 |
3.10 |
1.91 |
sums |
||
mean |
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variance |
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