Exhibit 13-12
in a Laboratory Experiment, Data Were Gathered on the Life

question 110

Multiple Choice

Exhibit 13-12
In a laboratory experiment, data were gathered on the life span Y in months) of 33 rats, units of daily protein intake X1) , and whether or not agent X2 a proposed life extending agent) was added to the rats diet X2 = 0 if agent X2 was not added, and X2 = 1 if agent was added.) From the results of the experiment, the following regression model was developed.
$\hat { Y }$ =36+0.8X1 - 1.7X2
Also provided are SSR = 60 and SST = 180.
-Refer to Exhibit 13-12. If we want to test for the significance of the model, the critical value of F at 95% confidence is

• A) 4.17
• B) 3.32
• C) 2.92
• D) 1.96

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Definitions:

Psychological Distress

A general term that encompasses emotional suffering characterized by feelings of sadness, depression, anxiety, and stress.

Poor Physical Health

Refers to the condition where the physical state of the body is not in optimal functioning, often due to disease, lack of exercise, or unhealthy lifestyle choices.

Bullying

Aggressive behavior among school-aged children that involves a real or perceived power imbalance.

Parental Influence

The effect that parents have on their children’s development, behavior, and life choices through their interactions, support, and guidance.