The average student studies eight hours for a statistics exam and receives a grade of µ = 84. In a sample of 25 students who study twelve hours for a statistics exam you find that the average grade is = 87. You want to test the hypothesis that studying twelve hours statistically significantly increases academic performance.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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The average student studies eight hours for a statistics exam and receives a grade of
µ = 84. In a sample of 25 students who study twelve hours for a statistics exam
you find that the average grade is I = 87. You want to test the hypothesis that
studying twelve hours statistically significantly increases academic performance.
Transcribed Image Text:The average student studies eight hours for a statistics exam and receives a grade of µ = 84. In a sample of 25 students who study twelve hours for a statistics exam you find that the average grade is I = 87. You want to test the hypothesis that studying twelve hours statistically significantly increases academic performance.
Assume the sample standard deviation is s=7.5, what do you conclude?
O You fail to reject the null
O You accept the alternative
O You reject the alternative
O You reject the null
Transcribed Image Text:Assume the sample standard deviation is s=7.5, what do you conclude? O You fail to reject the null O You accept the alternative O You reject the alternative O You reject the null
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