The next 10 questions refer to the following scenario. The average student studies eight hours for a statistics exam and receives a grade of u = 84. In a sample of 25 students who study twelve hours for a statistics exam you find that the average grade is X = 87. You want to test the hypothesis that studying twelve hours statistically significantly increases academic performance.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The next 10 questions refer to the following scenario.
The average student studies eight hours for a statistics exam and receives a grade of
u = 84. In a sample of 25 students who study twelve hours for a statistics exam
you find that the average grade is X = 87. You want to test the hypothesis that
studying twelve hours statistically significantly increases academic performance.
Transcribed Image Text:The next 10 questions refer to the following scenario. The average student studies eight hours for a statistics exam and receives a grade of u = 84. In a sample of 25 students who study twelve hours for a statistics exam you find that the average grade is X = 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?
You accept the alternative
You reject the alternative
You fail to reject the null
You reject the null
Transcribed Image Text:Assume the sample standard deviation is s=7.5, what do you conclude? You accept the alternative You reject the alternative You fail to reject the null You reject the null
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