The Two Samples Whose Statistics Are Given in the Table $$\begin{array} { | c | c | c | } \hline n & \text { Mean } & \text { SD } \\\hline 25 & 32 & 5 \\\hline 20 & 30 & 6 \\\hline\end{array}$$

question 21

Multiple Choice

The two samples whose statistics are given in the table are thought to come from populations with
Equal variances. What is the pooled estimate of the population standard deviation? $$\begin{array} { | c | c | c | } \hline n & \text { Mean } & \text { SD } \\\hline 25 & 32 & 5 \\\hline 20 & 30 & 6 \\\hline\end{array}$$

• A) 5.46
• B) 1.64
• C) 5.50
• D) 5.59
• E) 3.32

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Definitions:

Primary Amine

Organic compounds containing nitrogen, characterized by a nitrogen atom attached to one alkyl or aryl group.

Butylethylamine

A compound consisting of butyl and ethyl groups attached to an amine functional group.

Butylpropylamine

Butylpropylamine is an organic compound characterized by its structure comprising both butyl and propyl amine groups, and it's used in various chemical syntheses and applications.

Ethylpropylamine

A chemical compound which is an amine derivative from ethyl and propyl groups.