Question 1 A researcher is interested in measuring the memory recall of students. Twenty students were given fifteen minutes to try to memorize a list of 15 phrases. Each student was then asked to list as many of the phrases as he or she could remember both two hours and twenty-four hours later. The number of phrases recalled correctly for each student are shown below. Student Two Hours Twenty-Four Hours 1 2 3 4 5 6 7 8 9 10 7 19 13 3 0 3 14 0 12 2 2 4 14 10 9 4 3 1 3 11 12 13 14 15 16 17 18 19 20 22 12 10 2 4 3 11 5 4 14 4 1 0 11 10 10 12 14 13 b. Test the hypothesis that the mean for the memory after two hours is less than 5. Use the 1% level of significance. c. Determine whether there is evidence, at the 5% level of significance, that for all students, the mean number of words recalled after two hours exceeds that recalled after twenty-four hours
Question 1 A researcher is interested in measuring the memory recall of students. Twenty students were given fifteen minutes to try to memorize a list of 15 phrases. Each student was then asked to list as many of the phrases as he or she could remember both two hours and twenty-four hours later. The number of phrases recalled correctly for each student are shown below. Student Two Hours Twenty-Four Hours 1 2 3 4 5 6 7 8 9 10 7 19 13 3 0 3 14 0 12 2 2 4 14 10 9 4 3 1 3 11 12 13 14 15 16 17 18 19 20 22 12 10 2 4 3 11 5 4 14 4 1 0 11 10 10 12 14 13 b. Test the hypothesis that the mean for the memory after two hours is less than 5. Use the 1% level of significance. c. Determine whether there is evidence, at the 5% level of significance, that for all students, the mean number of words recalled after two hours exceeds that recalled after twenty-four hours
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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