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

question 294

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 are the degrees of freedom for the chi-square distribution when testing whether the model is a good-fitting model?

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Definitions:

Linked List

A data structure that consists of nodes where each node contains data and a reference (or link) to the next node in the sequence.

Self-Referencing

Involves an element or structure in computing that refers back to itself to establish relationships or define recursive operations.

Linked List

A data structure that consists of nodes, each containing data and a reference (link) to the next node in the sequence.

Structure Pointer Operator

The operator used to access members of a structure through a pointer in C/C++ (->).