0/1 pts Question 3 The university is interested in investigating whether the mea
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0/1 pts Question 3 The university is interested in investigating whether the mean GPA of all college students differs for various years in college. Samples were selected and the data was analyzed in Statistix to determine if the average GPA of sophomores, juniors, and seniors differed. The analysis is shown below One-Way AOV for GPA by Year Source DF SS MSFP Year 2 2.7978 1.39889 981 0.0001 Error 85 12.1163 0.14255 Total 87 14.9141 Grand Mean 3.2259 CV 11.70 Bonferroni All-Pairwise Comparisons Test of GPA by Year Year Sophomore 3.7500 A Junior 3.1847 B Senior3.1360 B Mean Homogeneous Groups Alpha 0.05 Which of the following relationships is not supported by the Bonferroni results presented? The mean GPA of all Juniors equals the mean GPA of all SeniorsExplanation / Answer
Yes. The given option is correct for the same reason provided there.
Bonferroni results presented does not support the following relationship:
"The mean GPA of all Juniors equals the mean GPA of all Seniors".
Reason: Senior means and junior means are in the same grouping(B). So, we cannot determine if they significantly differ or not(they are equal or not).
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