The scores of a random sample of 8 students on a physics test are as follows: 60, 62, 67, 69, 70, 72, 75, and 78. a) Test to see if the sample mean is significantly different from 65 at the 0.05 level. Report the t and p values. b) The researcher realizes that she accidentally recorded the score that should have been 76 as 67. Are these corrected scores significantly different from 65 at the 0.05 level?
The scores of a random sample of 8 students on a physics test are as follows: 60, 62, 67, 69, 70, 72, 75, and 78. a) Test to see if the sample mean is significantly different from 65 at the 0.05 level. Report the t and p values. b) The researcher realizes that she accidentally recorded the score that should have been 76 as 67. Are these corrected scores significantly different from 65 at the 0.05 level?
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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The scores of a random sample of 8 students on a physics test are as follows:
60, 62, 67, 69, 70, 72, 75, and 78.
a) Test to see if the sample mean is significantly different from 65 at the 0.05 level. Report the t and p values.
b) The researcher realizes that she accidentally recorded the score that should have been 76 as 67. Are these corrected scores significantly different from 65 at the 0.05 level?
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