To test whether or not there is a difference between the mean grade point average of male math majors and female math majors at a certain university, 2 random samples were gathered. For the 35 males, we find that x1= 3.1 with s1=0.2. For the females, x2=3.2 with s2=0.15. Test at a level of significance of 1%.
Mean GPA of male math majors = 3.1
S1 = 0.2 and n1 = 35
Mean GPA of female math majors = ...
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