SCENARIO 13-18
a Logistic Regression Model Was Estimated in Order

question 304

Short Answer

SCENARIO 13-18
A logistic regression model was estimated in order to predict the probability that a randomly chosen university or college would be a private university using information on mean total Scholastic Aptitude Test score (SAT) at the university or college and whether the TOEFL criterion is at least 90 (Toefl90 = 1 if yes, 0 otherwise.) The dependent variable, Y, is school type (Type = 1 if private and 0 otherwise).There are 80 universities in the sample.
The PHStat output is given below:
Binary Logistic Regression $$\begin{array}{l}\begin{array} { l r r r r } \hline { \text { Predictor } } & \text { Coefficients } & \text { SE Coef } &{ Z } & p \text {-Value } \\\hline \text { Intercept } & - 3.9594 & 1.6741 & - 2.3650 & 0.0180 \\\text { SAT } & 0.0028 & 0.0011 & 2.5459 & 0.0109 \\\text { Toefl90:1 } & 0.1928 & 0.5827 & 0.3309 & 0.7407\\\text { Deviance } & 101.9826\\\end{array}\\\end{array}$$
-Referring to SCENARIO 13-18, what should be the decision ('reject' or 'do not reject') on the null hypothesis when testing whether SAT makes a significant contribution to the model in the presence of Toefl90 at a 0.05 level of significance?

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Definitions:

Variable Costs

Costs that change in proportion to the level of production or activity, such as materials and labor.

Sales

The transactions involving the exchange of goods or services for money.

Contribution Margin Ratio

A financial metric that measures how much of a company's revenue is left over after variable costs to cover fixed costs and generate profit.

Fixed Costs

Fixed costs are business expenses that remain constant regardless of the level of production or sales, such as rent, salaries, and insurance premiums.