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

question 332

Multiple Choice

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) 3.56
• B) 3.50
• C) 1.87
• D) 5.00
• E) 3.52

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Definitions:

Angle Of The Jaw

The angular area on either side of the face where the jawbone bends upwards towards the ear.

Endotracheal Tube

A flexible tube inserted through the mouth or nose into the trachea to maintain an open airway and deliver oxygen.

Head Tilt-chin Lift

A technique used in first aid to open the airway of an unconscious person by tilting the head back and lifting the chin.

Jaw-thrust Maneuver

An emergency procedure used to open the airway of an unconscious patient by moving the jaw forward without tilting the head or neck.