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:

Chest Pain

A symptom that can be caused by a variety of conditions, ranging from non-serious issues like indigestion to life-threatening ones like heart attacks.

Axillary Veins

The blood vessels that transport venous blood from the lateral aspect of the thorax, armpit, and upper limb towards the heart.

Armpits

The areas beneath the shoulders where the arms connect to the body, known for containing sweat glands and being sensitive to heat.