Answered: An education researcher would like to…

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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An education researcher would like to test whether 2^nd graders retain or lose knowledge during the summer when they are presumably not in school. She asks nine 2^nd graders to take a comprehension exam at the end of the school year (May), and then asks those same students to come back after the summer (late August) to retake a different but equivalent exam, to see if their level of comprehension has changed. Using the data below, test this hypothesis using an alpha level of .05.

May	August
90	100
65	80
78	92
50	60
89	90
92	98
75	70
90	96
65	87

( d) Find the critical value

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