In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered. $\begin{array}{lll}
& \text { Downtown Store } & \text { North Mall Store } \
\text { Sample size } & 25 & 20 \
\text { Sample mean }& \$ 9 & \$ 8 \
\text { Sample standard deviation } & \$ 2 & \$ 1
\end{array}$ A point estimate for the difference between the two population means is
A) 1.
B) 2.
C) 3.
D) 4.

Question

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered. $\begin{array}{lll}
& \text { Downtown Store } & \text { North Mall Store } \
 \text { Sample size } & 25 & 20 \
\text { Sample mean }& \$ 9 & \$ 8 \
\text { Sample standard deviation } & \$ 2 & \$ 1
\end{array}$   A point estimate for the difference between the two population means is
A) 1.
B) 2.
C) 3.
D) 4.

Quizplus · Accepted Answer

The point estimate for the difference between the two population means is the difference between the two sample means, which is 9 - 8 = 1.

In Order to Estimate the Difference Between the Average Hourly