12.3 Random sampling of individuals with sity found the following grade point averages (GPAS) for the four groups: Major A: GPA = 3.23 (N = 178) Major B: GPA = 2.76 (N = 64) Major C: GPA 2.18 (N= 99) Major D: GPA = 3.54 (N = 121) %3D If the between-group variance is 5.7 and the within-group variance is 1.5, are the GPAS different for the four majors? Use a significance level of 0.01, and write out all of the steps of a test of statistical significance, violations of as imntions

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D. wnat u uie sig A
12.3 Random sampling of individuals with four different majors at a univer-
sity found the following grade point averages (GPAS) for the four
groups:
Major A: GPA = 3.23 (N = 178)
Major B: GPA = 2.76 (N = 64)
Major C: GPA = 2.18 (N = 99)
%3!
Major D: GPA = 3.54 (N = 121)
%3D
If the between-group variance is 5.7 and the within-group variance is
1.5, are the GPAS different for the four majors? Use a significance level
of 0.01, and write out all of the steps of a test of statistical significance,
including any violations of assumptions.
Transcribed Image Text:D. wnat u uie sig A 12.3 Random sampling of individuals with four different majors at a univer- sity found the following grade point averages (GPAS) for the four groups: Major A: GPA = 3.23 (N = 178) Major B: GPA = 2.76 (N = 64) Major C: GPA = 2.18 (N = 99) %3! Major D: GPA = 3.54 (N = 121) %3D If the between-group variance is 5.7 and the within-group variance is 1.5, are the GPAS different for the four majors? Use a significance level of 0.01, and write out all of the steps of a test of statistical significance, including any violations of assumptions.
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