The margin of error for a multiple comparisons procedure was
determined to be 10.5 units. The...
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The margin of error for a multiple comparisons procedure wasdetermined to be 10.5 units. The sample means for the problem were:A: 47.3 B: 22.5 C: 19.5 D: 38.6. Which of the following statementsis INCORRECT?
There IS a significant difference between groups A and B
There IS a significant difference between groups A and C
There is NO significant differences between groups A and D
There is NO significant differences between groups B and C
There is NO significant differences between groups B and D
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SolutionGivenE Margin of Error 105The sample means for the problem were A 473 B 225 C 195D 386We have to identify incorrect statement from givenstatementsLets consider first oneThere IS a significant difference between groups A and BFor group A mean 473 and for group B mean 225Thus lower and upper limits of confidence interval areIf confidence interval includes 0 then we say there is nosignificant difference and if it does not include 0 that is boththe
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