Question: From Example 6.4 (page 160), for the cognitive behavioral therapy group the sample mean change in weight of 3.0 pounds was significantly different from 0.

From Example 6.4 (page 160), for the cognitive behavioral therapy group the sample mean change in weight of 3.0 pounds was significantly different from 0. However, Example 7.8 (page 206) showed it is not significantly different from the mean change for the control group, even though that group had a negative sample mean change.

How do you explain this paradox? (Hint: From Sections 7.1 and 7.3, how does the se value for estimating a difference between two means compare to the se value for estimating a single mean?)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Statistical Sampling To Auditing Questions!