3. Administrators at a major university are concerned about grade inflation. In 1996, 40% of the students at the university had an overall grade point average of 3.0 or higher on a scale of 4.0. In 2012, a random sample of 25 student records found that 17 students had a GPA of 3.0 or higher. a. State the null hypothesis that would indicate no grade inflation. b. State the one-tailed alternative hypothesis that would indicate grade inflation. c. Find the region of rejection when a is set as close to 0.01 as possible. d. Using the region of rejection found in part c), what conclusions do you reach regarding grade inflation at this university?
3. Administrators at a major university are concerned about grade inflation. In 1996, 40% of the students at the university had an overall grade point average of 3.0 or higher on a scale of 4.0. In 2012, a random sample of 25 student records found that 17 students had a GPA of 3.0 or higher. a. State the null hypothesis that would indicate no grade inflation. b. State the one-tailed alternative hypothesis that would indicate grade inflation. c. Find the region of rejection when a is set as close to 0.01 as possible. d. Using the region of rejection found in part c), what conclusions do you reach regarding grade inflation at this university?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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