The two samples whose statistics are given in the table thought to come from populations with
Equal variances. What is the pooled estimate of the population standard deviation? $$\begin{array} { | c | c | c | }
\hline n & \text { Mean } & \text { SD } \
\hline 50 & 22 & 3 \
\hline 55 & 25 & 4 \
\hline
\end{array}$$
A) 3.50
B) 1.87
C) 5.00
D) 3.56
E) 3.52

Question

The two samples whose statistics are given in the table thought to come from populations with
Equal variances. What is the pooled estimate of the population standard deviation? $$\begin{array} { | c | c | c | } 
\hline n & \text { Mean } & \text { SD } \
\hline 50 & 22 & 3 \
\hline 55 & 25 & 4 \
\hline
\end{array}$$
A) 3.50
B) 1.87
C) 5.00
D) 3.56
E) 3.52

Quizplus · Accepted Answer

The Answer of The two samples whose statistics are given in the table thought to come from populations with
Equal variances. What is the pooled estimate of the population standard deviation? $$\begin{array} { | c | c | c | } 
\hline n & \text { Mean } & \text { SD } \
\hline 50 & 22 & 3 \
\hline 55 & 25 & 4 \
\hline
\end{array}$$
A) 3.50
B) 1.87
C) 5.00
D) 3.56
E) 3.52

The Two Samples Whose Statistics Are Given in the Table n Mean SD 5022355254\begin{array} { | c | c | c | } \hline n & \text { Mean } & \text { SD } \\\hline 50 & 22 & 3 \\\hline 55 & 25 & 4 \\\hline\end{array}n5055​ Mean 2225​ SD 34​​

The Two Samples Whose Statistics Are Given in the Table $\begin{array} { | c | c | c | } \hline n & \text { Mean } & \text { SD } \\\hline 50 & 22 & 3 \\\hline 55 & 25 & 4 \\\hline\end{array}$