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

question 61

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. Also provided are SSR = 60 and SST = 180.
-Refer to Exhibit 13-12. The life expectancy of a rat that was not given any protein and that did not take agent X₂ is

• A)36.7
• B)34.3
• C)36
• D)38.4

---

Definitions:

Misdirection

refers to the technique of distracting attention away from the intended focus, often used in magic tricks or in strategic communication.

Organizational Interests

The priorities or goals shared by members within an organization that guide its actions and decisions.

Hindsight Bias

The tendency to believe, after an event has occurred, that one would have predicted or expected the outcome.

Inert Knowledge Problem

The phenomenon where knowledge acquired by an individual cannot be applied effectively to new or practical situations.