Instruction 13-4
a Real Estate Builder Wishes to Determine How

question 1

Multiple Choice

Instruction 13-4
A real estate builder wishes to determine how house size (House) is influenced by family income (Income) ,family size (Size) ,and education of the head of household (School) .House size is measured in hundreds of square metres,income is measured in thousands of dollars,and education is in years.The builder randomly selected 50 families and ran the multiple regression.Microsoft Excel output is provided below:
OUTPUT
SUMMARY
Regression Statistics
$\begin{array}{ll}\text { Multiple R } & 0.865 \\ \text { R Square } & 0.748 \\ \text { Adj. R Square } & 0.726 \\ \text { Std. Error } & 5.195 \\ \text { Observations } & 50\end{array}$
ANOVA
$\begin{array}{llllll} & d f & \text { SS } & \text { MS } & F & \text { Siguif } F \\\text { Regression } & & 3605.7736 & 901.4434 & & 0.0001 \\\text { Residual } & & 1214.2264 & 26.9828 & & \\\text { Total } & 49 & 4820.0000 & & &\end{array}$

$\begin{array}{lllll} & \text { Coeff } & \text { StdError } & \boldsymbol{t} \text { Stat } & \boldsymbol{P} \text {-value } \\\text { Intercept } & -1.6335 & 5.8078 & -0.281 & 0.7798 \\\text { Income } & 0.4485 & 0.1137 & 3.9545 & 0.0003 \\\text { Size } & 4.2615 & 0.8062 & 5.286 & 0.0001 \\\text { School } & -0.6517 & 0.4319 & -1.509 & 0.1383\end{array}$ Note: Adj.R Square = Adjusted R Square;Std.Error = Standard Error
-Referring to Instruction 13-4,which of the independent variables in the model are significant at the 5% level?

• A)Income,Size.
• B)Income,School.
• C)Size,School.
• D)Income,Size,School.

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Definitions:

Nutrients

Substances that provide nourishment essential for the growth and maintenance of life.

Cheilosis

A condition characterized by cracking and inflammation of the lips, corners of the mouth, often due to vitamin deficiency or infection.

Abdomen

The part of the body that lies between the thorax (chest) and pelvis, housing many vital organs, including the stomach, liver, and intestines.

Large Intestine

The final section of the digestive system, responsible for absorbing water and electrolytes and forming and storing feces.