Test the claim that the mean GPA for student athletes is
significantly different than 3.3 at the 0.01 significance
level.
Based on a sample of 75 people, the sample mean GPA was 3.28 with a
standard deviation of 0.06
The test statistic is: (to 3 decimals)
The p-value is: (to 3 decimals)
Based on this we:
Test statistic
t = -2.89
Degrees of freedom = 75 - 1 = 74
So,
p - Value = 2*P(t(74) < -2.89) = 0.005
We reject the null hypothesis.
Test the claim that the mean GPA for student athletes is significantly different than 3.3 at...
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