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

question 127

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. The degrees of freedom associated with SSE are

• A) 3
• B) 33
• C) 32
• D) 30

---

Definitions:

Nominal Group Technique

An organized approach to collective brainstorming designed to promote participation from all group members in identifying and resolving issues.

Select Experts

The process of identifying and choosing individuals with specialized knowledge or skills for a specific purpose.

Delphi Method

A forecasting process framework based on the results of multiple rounds of questionnaires sent to a panel of experts.

Nominal Group Technique

A structured method for group brainstorming that encourages contributions from everyone in the group and is used to generate and prioritize a wide range of ideas.