Exhibit 10-4
The following information was obtained from independent random samples.
Assume normally distributed populations with equal variances.
-Refer to Exhibit 10-4. The point estimate for the difference between the means of the two populations is
A)0
B)2
C)3
D)15

Question

Exhibit 10-4
The following information was obtained from independent random samples.
Assume normally distributed populations with equal variances. 
-Refer to Exhibit 10-4. The point estimate for the difference between the means of the two populations is
A)0 
B)2 
C)3 
D)15

Quizplus · Accepted Answer

The point estimate for the difference between the means of the two populations is calculated by subtracting the sample mean of population 2 from the sample mean of population 1. In this case, it is 18 - 15 = 3. Therefore, the best choice for the point estimate is C) 3.

Exhibit 10-4 The Following Information Was Obtained from Independent Random Samples