If the confidence interval for the difference of means contains zero, then it can be concluded that ________________.
A)there is a significant difference in the variances
B)there is not a significant difference in the means
C)there is a significant difference in the means
D)the groups are the same on all measures
E)there is not a significant difference in the variances

Question

Quizplus · Accepted Answer

If the confidence interval for the difference of means contains zero, it suggests that the true difference between the population means could be zero, indicating there is not a significant difference in the means. This does not necessarily imply anything about the variances or that the groups are the same on all measures.

If the Confidence Interval for the Difference of Means Contains