A Random Sample of 10 Waitresses in Darwin Revealed the Following

question 67

Short Answer

A random sample of 10 waitresses in Darwin revealed the following hourly earnings (in dollars, including tips): $\begin{array}{|l|l|l|l|l|l|l|l|l|l|}\hline19 & 18 & 15 & 16 & 18 & 17 & 16 & 18 & 20 & 14 \\\hline\end{array}$ If the hourly earnings are normally distributed with a standard deviation of $4.5, estimate with 95% confidence the mean hourly earnings for all waitresses in Darwin.

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Definitions:

Cuff Deflated

Refers to the process of releasing air from a cuff, commonly associated with blood pressure measurement devices, to lower its pressure.

Palpatory Method

Systolic blood pressure measured by using the sense of touch. This measurement provides a necessary preliminary approximation of the systolic blood pressure to ensure an adequate level of inflation when the actual auscultatory measurement is made.

Brachial Artery

An artery that provides a palpable pulse and audible vascular sounds in the antecubital space (the bend of the elbow).

Stethoscope

A medical instrument used for listening to the internal sounds of an organism's body, typically used for assessing heart, lung, and other organ sounds.