O Rejection of the null hypothesis; there is a significant treatment effect. O Failure to reject the null hypothesis; there is not a significant treatment effect. O Failure to reject the null hypothesis; there is a significant treatment effect. O Rejection of the null hypothesis; there is not a significant treatment effect. assume that the sample standard deviation is SS = 480 and repeat the hypothesis test.
O Rejection of the null hypothesis; there is a significant treatment effect. O Failure to reject the null hypothesis; there is not a significant treatment effect. O Failure to reject the null hypothesis; there is a significant treatment effect. O Rejection of the null hypothesis; there is not a significant treatment effect. assume that the sample standard deviation is SS = 480 and repeat the hypothesis test.
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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Transcribed Image Text:O Rejection of the null hypothesis; there is a significant treatment effect.
O Failure to reject the null hypothesis; there is not a significant treatment effect.
O Failure to reject the null hypothesis; there is a significant treatment effect.
O Rejection of the null hypothesis; there is not a significant treatment effect.
Now assume that the sample standard deviation is SS = 480 and repeat the hypothesis test.
t-critical
+ 2.015
1.000
O Failure to reject the null hypothesis; there is not a significant treatment effect.
O Rejection of the null hypothesis; there is not a significant treatment effect.
O Failure to reject the null hypothesis; there is a significant treatment effect.
O Rejection of the null hypothesis; there is a significant treatment effect.
Explain how sample variability influences the likelihood of finding a significant mean difference.
increases
the likelihood of rejecting the null hypothesis if the null hypothesis is false.
Low sample variability
Transcribed Image Text:ter question 13
A repeated-measures study with a sample of n = 6 participants produces a mean difference of MD = 4 with SS= 30. Use a two-tailed hypothesis test
!!
with a = .05 to determine whether this sample provides evidence of a significant treatment effect.
t-critical
+ 2.571
2.000
t Distribution
Degrees of Freedom = 21
5000
5000
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
0.000
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