Independent random samples taken at two companies provided the following information regarding annual salaries of the employees.
$\begin{array}{lll}&\text { Company A }&\text { Company B }\
\text { Sample Size } & 72 & 50 \
\text { Sample Mean in } \$ 1,000) & 48 & 43 \
\text { Population Standard Deviation in } \$ 1,000) & 12 & 10
\end{array}$
a. We want to determine whether or not there is a significant difference between the average salaries of the employees at the two companies. Compute the test statistic.
b. Compute the p-value; and at 95% confidence, test the hypotheses.

Question

Independent random samples taken at two companies provided the following information regarding annual salaries of the employees.
 $\begin{array}{lll}&\text { Company A }&\text { Company B }\
\text { Sample Size } & 72 & 50 \
\text { Sample Mean in } \$ 1,000) & 48 & 43 \
\text { Population Standard Deviation in } \$ 1,000) & 12 & 10
\end{array}$ 
a. We want to determine whether or not there is a significant difference between the average salaries of the employees at the two companies. Compute the test statistic.
b. Compute the p-value; and at 95% confidence, test the hypotheses.

Quizplus · Accepted Answer

The Answer of Independent random samples taken at two companies provided the following information regarding annual salaries of the employees.
 $\begin{array}{lll}&\text { Company A }&\text { Company B }\
\text { Sample Size } & 72 & 50 \
\text { Sample Mean in } \$ 1,000) & 48 & 43 \
\text { Population Standard Deviation in } \$ 1,000) & 12 & 10
\end{array}$ 
a. We want to determine whether or not there is a significant difference between the average salaries of the employees at the two companies. Compute the test statistic.
b. Compute the p-value; and at 95% confidence, test the hypotheses.

Independent Random Samples Taken at Two Companies Provided the Following