Exhibit 13-8
the Following Estimated Regression Model Was Developed Relating $\hat { Y }$

question 50

Multiple Choice

Exhibit 13-8
The following estimated regression model was developed relating yearly income Y in $1,000s) of 30 individuals with their age X1) and their gender X2) 0 if male and 1 if female) .
$\hat { Y }$ =30+0.7X1+3X2
Also provided are SST = 1,200 and SSE = 384.
-Refer to Exhibit 13-8. The test statistic for testing the significance of the model is

• A) 0.73
• B) 1.47
• C) 28.69
• D) 5.22

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Definitions:

Control Group

In experimental research, it is the group that does not receive the treatment or intervention, serving as a baseline to compare against the experimental group.

Dimly Lit Room

A room that is lightly illuminated, often creating a subdued or intimate atmosphere.

Experimental Group

In an experiment, the group of participants that receives the treatment or intervention under investigation, as opposed to the control group.

Random Assignment

Assigning participants to experimental and control groups by chance, thus minimizing preexisting differences between the different groups.