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When Using the 'Standard Deviation Rule' to Test the Differences

Question 80

Multiple Choice

When using the 'Standard Deviation Rule' to test the differences in selection rates among groups, if the difference in means is greater than ________ standard deviations, the difference in means is considered to be significant between the two groups.


A) 1.0
B) 1.64
C) 1.96
D) 2.55

Correct Answer:

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