Exhibit 10-2
The following information was obtained from matched samples.
The daily production rates for a sample of workers before and after a training program are shown below.
-Refer to Exhibit 10-2. The point estimate for the difference between the means of the two populations is
A)-1
B)-2
C)0

Question

Exhibit 10-2
The following information was obtained from matched samples.
The daily production rates for a sample of workers before and after a training program are shown below. 
-Refer to Exhibit 10-2. The point estimate for the difference between the means of the two populations is
A)-1 
B)-2 
C)0

Quizplus · Accepted Answer

The point estimate for the difference between the means of the two populations is calculated by taking the mean of the differences in the sample data. In this case, the mean difference is (17-17)=0. Therefore, the best choice is option C, which corresponds to a point estimate of 0.

Exhibit 10-2 The Following Information Was Obtained from Matched Samples