Use the Given Data to Find the Equation of the Regression

question 73

Multiple Choice

Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary.
-Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below.
$\begin{array}{cc|c|c|c|c|c|c|c|c|c}\text { Performance } & 59 & 63 & 65 & 69 & 58 & 77 & 76 & 69 & 70 & 64 \\\hline \text { Attitude }& 72 & 67 & 78 & 82 & 75 & 87 & 92 & 83 & 87 & 78\end{array}$

• A) \(\hat { y } = 2.81 + 1.35 x\)
• B) \(\hat { y } = 92.3 - 0.669 \mathrm { x }\)
• C) \(\hat { y } = 11.7 + 1.02 x\)
• D) \(\hat { y }= - 47.3 + 2.02 \mathrm { x }\)

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Definitions:

Absolute Advantage

The ability of an individual, company, or nation to produce a good or service more efficiently than competitors, using the same amount of resources.

Comparative Advantage

The ability of an entity to produce a good or service at a lower opportunity cost than its competitors, underpinning international trade benefits.

Computers

Electronic devices capable of processing, storing, and communicating information according to a set of instructions called programs.

Comparative Advantage

The capability of a nation, person, corporation, or area to generate a product or service with a lesser opportunity cost compared to rivals.