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We now want to test the null hypothesis H0 H0:In college, the average GPA of men...

  • We now want to test the null hypothesis H0

H0:In college, the average GPA of men is equal to the average GPA of women.

H1:In college, the average GPA of men is different from the average GPA of women.

A sample of 10 men's GPA in college has sample mean 2.9, and a sample of 10 women's GPA has sample mean 3.1. We also know the GPAs of men and women have the same estimated standard deviation 0.2.

Calculate the p value using t-test

Math   Statistics-And-Probability   
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