Thane Company Is Interested in Establishing the Relationship Between Electricity

question 112

Multiple Choice

Thane Company is interested in establishing the relationship between electricity costs and machine hours.Data have been collected and a regression analysis prepared using Excel.The monthly data and the regression output follow: $$\begin{array} { | l | r | r | } \hline \text { Month } & \text { Machine Hours } & \text { Electricity Costs } \\\hline \text { January } & 2,500 & 18,400 \\\hline \text { February } & 2,900 & 21,000 \\\hline \text { March } & 1,900 & 13,500 \\\hline \text { April } & 3,100 & 23,000 \\\hline \text { May } & 3,800 & 28,250 \\\hline \text { June } & 3,300 & 22,000 \\\hline \text { Juby } & 4,100 & 24,750 \\\hline \text { August } & 3,500 & 22,750 \\\hline \text { September } & 2,000 & 15,500 \\\hline \text { October } & 3,700 & 26,000 \\\hline \text { November } & 4,700 & 31,000 \\\hline \text { December } & 4,200 & 27,750 \\\hline\end{array}$$

The percent of the total variance that can be explained by the regression is:

• A) 0.965.
• B) 0.932.
• C) 0.925.
• D) 0.982.

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