This preview shows pages 1–2. Sign up to view the full content.
BIT 2406
Quiz 2
Multiple Choices: Please choose the most correct response to each of the following questions.
Please carry all computations out to four (4) decimal places.
1.
An investigator hired by a client suing for sex discrimination has developed a multiple regression
model for employee salaries for the company in question. In this multiple regression model, the
salaries are in thousands of dollars. For example, a data entry of 35 for the dependent variable
indicates a salary of $35,000. The indicator (dummy) variable for gender is coded as X
1
= 0 if
male and X
1
= 1 if female. The computer output of this multiple regression model shows that the
coefficient for this variable (X
1
) is – 4.2. The t test showed that X
1
was significant at = 0.1.
This result implies that for male and female workers of the company,
On the average, females earn $4200 less.
2.
In a multiple regression analysis, the current model has three independent variables. The analyst
decides to add another (fourth) independent variable while retaining the other three independent
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
 Summer '07
 LLClark

Click to edit the document details