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IN A SAMPLE OF 33 STUDENTS, THE MEAN DIFFERENCE WAS 6.159

IN A SAMPLE OF 33 STUDENTS, THE MEAN DIFFERENCE WAS 6.159

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Author: Christine Farr
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In a sample of 33 students, the mean difference was 6.159 points with a standard deviation of 15.156. Scored tended to be higher on the practice quiz. Use Minitab / Minitab Express to answer the following questions. You will have to enter in these statistics as “summarized data.” (16 points)
A. Construct a 95% confidence interval for the mean difference between the Midterm I Practice Quiz and Midterm I exam.
 
B. Given the null hypothesis μd = 0, and alternative hypothesis μd≠ 0, what is the p value?
 
C. Is there evidence that students scored differently on the Midterm I Practice Quiz and Midterm I? Why?


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