This problem demonstrates a possible (though rare) situation that can occur with group comparisons. The groups are sections and the dependent variable is an exam score. Section 1 Section 2 Section 3 76.2 39.4 66 65.6 58.4 60.8 63.6 63.6 76.5 70.5 36.8 69.9 71.4 75.5 67.3 74.2 79.1 69.1 55.8 53.5 70.5 62.5 59.8 74 79.9 52.6 59.1 Run a one-way ANOVA (fixed effect) with a = 0.05. Round the F-ratio to three decimal places and the p-value to four decimal places. Assume all population and ANOVA requirements are met. F = P = What is the conclusion from the ANOVA? reject the null hypothesis: at least one of the group means is different fail to reject the null hypothesis: not enough evidence to suggest the group means are different

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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This problem demonstrates a possible (though rare)
situation that can occur with group comparisons. The
groups are sections and the dependent variable is an exam
score.
Section 1 Section 2 Section 3
76.2
39.4
66
65.6
58.4
60.8
63.6
63.6
76.5
70.5
36.8
69.9
71.4
75.5
67.3
74.2
79.1
69.1
55.8
53.5
70.5
62.5
59.8
74
79.9
52.6
59.1
Run a one-way ANOVA (fixed effect) with a = 0.05. Round
the F-ratio to three decimal places and the p-value to four
decimal places. Assume all population and ANOVA
requirements are met.
F
=
P
=
What is the conclusion from the ANOVA?
reject the null hypothesis: at least one of the group
means is different
fail to reject the null hypothesis: not enough
evidence to suggest the group means are different
Transcribed Image Text:This problem demonstrates a possible (though rare) situation that can occur with group comparisons. The groups are sections and the dependent variable is an exam score. Section 1 Section 2 Section 3 76.2 39.4 66 65.6 58.4 60.8 63.6 63.6 76.5 70.5 36.8 69.9 71.4 75.5 67.3 74.2 79.1 69.1 55.8 53.5 70.5 62.5 59.8 74 79.9 52.6 59.1 Run a one-way ANOVA (fixed effect) with a = 0.05. Round the F-ratio to three decimal places and the p-value to four decimal places. Assume all population and ANOVA requirements are met. F = P = What is the conclusion from the ANOVA? reject the null hypothesis: at least one of the group means is different fail to reject the null hypothesis: not enough evidence to suggest the group means are different
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