Do students reduce study time in classes where they achieve a higher midterm score? In a Journal
Question:
a. Set up the null and alternative hypotheses to test whether there is a difference in the population mean study time before and after the midterm exam.
b. Below we present the MINITAB output for the paired differences test. Use the output and critical values to test the hypotheses at the .10, .05, and .01 levels of significance. Has the population mean study time changed?
95% CI for mean difference: (1.61943, 6.63057)
T-Test of mean difference = 0 (vs not = 0): T- Value = 3.89 P-Value = 0.006
c. Use the p-value to test the hypotheses at the .10, .05, and .01 levels of significance. How much evidence is there against the null hypothesis?
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Related Book For
Essentials Of Business Statistics
ISBN: 9780078020537
5th Edition
Authors: Bruce Bowerman, Richard Connell, Emily Murphree, Burdeane Or
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