Random samples of size 64 are taken from an infinite population whose mean is 160 and standard deviation is 32. The mean and standard error of the sample mean, respectively, are: $\begin{array}{|l|l|}
\hline \text { A. } & 160 \text { and } 32 . \
\hline \text { B. } & 64 \text { and } 32 . \
\hline \text { C. } & 160 \text { and } 4 . \
\hline \text { D. } & 20 \text { and } 4 . \
\hline
\end{array}$

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The Answer of Random samples of size 64 are taken from an infinite population whose mean is 160 and standard deviation is 32. The mean and standard error of the sample mean, respectively, are: $\begin{array}{|l|l|}
\hline \text { A. } & 160 \text { and } 32 . \
\hline \text { B. } & 64 \text { and } 32 . \
\hline \text { C. } & 160 \text { and } 4 . \
\hline \text { D. } & 20 \text { and } 4 . \
\hline
\end{array}$

Random Samples of Size 64 Are Taken from an Infinite