Instruction 3-14
Given Below Are the Rating and Performance Scores

question 53

Short Answer

Instruction 3-14
Given below are the rating and performance scores of 15 laptop computers.
$$\begin{array} { | l | l | l | l | l | l | l | l | l | l | l | l | l | l | l | } \hline \begin{array} { l } \text { Performanc } \\\text { e Score }\end{array} & 115 & 191 & 153 & 194 & 236 & 184 & 184 & 216 & 185 & 183 & 189 & 202 & 192 & 141 \\\hline \begin{array} { l } \text { Overall } \\\text { Rating }\end{array} & 74 & 78 & 79 & 80 & 84 & 76 & 77 & 92 & 83 & 78 & 77 & 78 & 78 & 73 \\\hline\end{array}$$
-Referring to Instruction 3-14,what is the sample correlation coefficient between the performance scores and the rating?

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Definitions:

Percentage Of Sales

A financial ratio that compares a particular expense or income to the total sales, expressing the result as a percentage to analyze trends or performance.

Margin Of Safety

The difference between actual or projected sales and the break-even point, usually expressed in percentage terms, indicating the buffer against a loss.

Operating Leverage

The degree to which a firm can use fixed operating costs to magnify the effects of changes in revenue on its operating income.

Salesvolume

Refers to the total number of units sold within a specific period.