Instruction 13-5
a Microeconomist Wants to Determine How Corporate Sales $\mathrm { R }$

question 227

Multiple Choice

Instruction 13-5
A microeconomist wants to determine how corporate sales are influenced by capital and wage spending by companies.She proceeds to randomly select 26 large corporations and record information in millions of dollars.The Microsoft Excel output below shows results of this multiple regression.
SUMMARY
Regression Statistics
\begin{tabular} { l r } Multiple $\mathrm { R }$ & $0.830$ \\ \hline Square & $0.689$ \end{tabular}
R Square $\quad 0.689$
Adj. R Square $\quad 0.662$
Std. Error $\quad 17501.643$
Observations 26
ANOVA
$\begin{array} { l l l l l l } & \boldsymbol { d f } & \text { SS } & \text { MS } & \boldsymbol { F } & \text { Siguif } \boldsymbol { F } \\ \text { Regression } & 2 & 15579777040 & 7789888520 & 25.432 & 0.0001 \\ \text { Residual } & 23 & 7045072780 & 306307512 & & \\ \text { Total } & 25 & 22624849820 & & & \end{array}$
$\begin{array} { l l l l l } & \text { Coeff } & \text { StdError } & \boldsymbol { t } \text { Stat } & \boldsymbol { P } \text {-value } \\ \text { Intercept } & 15800.0000 & 6038.2999 & 2.617 & 0.0154 \\ \text { Capital } & 0.1245 & 0.2045 & 0.609 & 0.5485 \\ \text { Wages } & 7.0762 & 1.4729 & 4.804 & 0.0001 \end{array}$ Note: Adj.R Square = Adjusted R Square;Std.Error = Standard Error
-Referring to Instruction 13-5,when the microeconomist used a simple linear regression model with sales as the dependent variable and wages as the independent variable,he obtained an r² value of 0.601.What additional percentage of the total variation of sales has been explained by including capital spending in the multiple regression?

• A)60.1%
• B)22.9%
• C)8.8%
• D)31.1%

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Definitions:

S-corporation

A special type of corporation in the U.S. that allows profits, and some losses, to be passed directly to owners’ personal income without being subject to corporate tax rates.

Double Taxation

The levying of tax by two or more jurisdictions on the same declared income, asset, or financial transaction.

Financial Theory

The study of how individuals and corporations make investment decisions, and how these decisions affect financial markets and the overall economy.

Economics

The social science that studies how individuals, governments, firms, and nations make choices on allocating resources to satisfy their wants and needs.