Thane Company Is Interested in Establishing the Relationship Between Electricity

question 9

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:
$\begin{array}{lll}\text {Month}&\text {Machine Hours}&\text {Electricity Costs}\\\text { January } & 2,500 & \$ 18,400 \\\text { February } & 2,900 & 21,000 \\\text { March } & 1,900& 13,500 \\\text { April } & 3,100 & 23,000 \\\text { May } & 3,800& 28,250 \\\text { June } & 3,300& 22,000 \\\text { July } & 4,100 & 24,750\\\text { August } & 3,500 & 22,750 \\\text { September } & 2,000 & 15,500 \\\text { October } & 3,700 & 26,000 \\\text { November } & 4,700 & 31,000 \\\text { December } & 4,200 & 27,750\end{array}$



$$\begin{array}{c}{ \text { Summary Output } } \\ { \text { Regression Statistic} } \\\begin{array} { | c | c | } \hline \text { Multiple R } & 0.965 \\\hline \text { R Squuare } & 0.932 \\\hline \text { Adjusted R } ^2& 0.925 \\\hline \text { Standard Error } & 1,425.18 \\\hline \text { Observations } & 12.00 \\\hline\end{array}\end{array}$$
$\begin{array}{|l|r|r|r|r|r|r|}\hline && \text { Standard } & && \text { Lower } & \text { Upper } \\&\text { Coefficients } & \text { Error } & \text { t Stat } & \text { P-value } & 95 \% & 95 \% \\ \hline \text { Intercept } & 3,726.88 & 1,682.82 & 2.21 & 0.05 & (22.69) & 7,476.45 \\\hline \text { Machine } & 5.77 & 0.49 & 11.7 & 0.00 & 4.67 & 6.87 \\\text { Hours } & & & & & \\\hline\end{array}$



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The correlation coefficient for the regression equation for electricity costs is:

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

Comprehend the importance of clarifying behavior in reducing role ambiguity and enhancing task performance.

Analyze the relationship between leader behavior categories and their effectiveness.

Understand the significance of recognizing leadership in strengthening behavior and task commitment.

Evaluate the challenges in categorizing and researching leadership behaviors and theorizing about leadership effectiveness.

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Definitions:

Annually Compounded

Interest on an investment or loan calculated once per year, including interest on the initial amount and all previously accumulated interest.

Effective Rate

The actual interest rate of an investment or loan when compounding interest is taken into account, differing from the nominal rate by including the effects of compounding.

Financial Position

A snapshot of the resources, obligations, and the net worth of an individual or organization at a specific point in time.

Nominal Rate

The stated interest rate of a loan or investment, not taking into account the effect of compounding.