SCENARIO 13-19
the Marketing Manager for a Nationally Franchised Lawn

question 264

Short Answer

SCENARIO 13-19
The marketing manager for a nationally franchised lawn service company would like to study the characteristics that differentiate home owners who do and do not have a lawn service.A random sample of 30 home owners located in a suburban area near a large city was selected; 11 did not have a lawn service (code 0) and 19 had a lawn service (code 1).Additional information available
concerning these 30 home owners includes family income (Income, in thousands of dollars) and lawn size (Lawn Size, in thousands of square feet).
The PHStat output is given below:
Binary Logistic Regression $$\begin{array}{l}\begin{array} { l r r r r } \hline { \text { Predictor } } & \text { Coefficients } & \text { SE Coef } & { Z } & p \text {-Value } \\\hline \text { Intercept } & - 7.8562 & 3.8224 & - 2.0553 & 0.0398 \\\text { Income } & 0.0304 & 0.0133 & 2.2897 & 0.0220 \\\text { Lawn Size } & 1.2804 & 0.6971 & 1.8368 & 0.0662\\\text { Deviance } & 25.3089\end{array}\\\end{array}$$
-Referring to SCENARIO 13-19, what is the p-value of the test statistic when testing whetherIncome makes a significant contribution to the model in the presence of LawnSize?

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Definitions:

Urinary Bladder

A hollow organ in the lower abdomen that stores urine from the kidneys before it is excreted.

Spleen

An organ found in virtually all vertebrates which filters blood, helps fight certain kinds of bacteria that cause pneumonia and meningitis, and removes old red blood cells.

Gallbladder

A small, pear-shaped organ located beneath the liver that stores and concentrates bile produced by the liver.

Axillary Region

The area of the body under the joint where the arm connects to the shoulder, commonly known as the armpit.