Three independent group students took an exam. The data presented below represent the students’ test scores. Group...

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Three independent group students took an exam. The datapresented below represent the students’ test scores.

Group 1 Group 2 Group 3

95 79 65

98 76 68

80 60 70

77 88 87

99 69 66

90 66 72

Based on the post hoc (Tukey) test, which two groups have asignificant difference at the 0.05 level ?

a. group 1 and group 2

b. group 1 and group 3

c. group 2 and group 3

d. both a and b

Answer & Explanation Solved by verified expert
3.8 Ratings (745 Votes)
The Summary statistics are as followsGr1Gr2Gr3Total539438428n666Mean898337300071333Sum Of    See Answer
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