In a Survey Sponsored by Coca-Cola, Subjects Aged 15-65 Were

question 7

Essay

In a survey sponsored by Coca-Cola, subjects aged 15-65 were asked what contributes most to their happiness. The table is based on their responses. Determine whether a probability distribution is given and two reasons why or why not.
$\begin{array} { c | c } \begin{array} { c } \text { Contributes Most } \\\text { to Happiness }\end{array} & \boldsymbol { P } ( \boldsymbol { x } ) \\\hline \text { Family } & 0.77 \\\text { Friends } & 0.15 \\\text { Work/Study } & 0.08 \\\text { Leisure } & 0.08 \\\text { Music } & 0.06 \\\text { Sports } & 0.04\end{array}$

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Definitions:

Control Chart

A graphical tool used in quality control processes to monitor a process and indicate when it is going out of predetermined control limits.

Upper Control Limit

The highest value on a control chart that signals the process is still within acceptable limits before corrective actions are deemed necessary.

Standard Deviation

A metric for gauging the extent of fluctuation or scatter in a sequence of values.

Type II Error

A statistical error that occurs when a researcher fails to reject a false null hypothesis, missing an actual effect.