TABLE 12-1 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 193

Multiple Choice

TABLE 12-1
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let π₁ and π₂ represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively.
-Referring to Table 12-1, what is the critical value when performing a chi-square test on whether the population proportions are different if α = 0.05?

• A) ±1.645
• B) ±1.96
• C) 3.841
• D) 2.706

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Definitions:

Fundamental Attribution Error

The tendency to overemphasize personal traits and underemphasize situational factors when explaining others' behavior.

Situational Causes

Factors external to an individual that are viewed as causes for behavior.

Heuristics

Simplified strategies or shortcuts used to make decisions and solve problems more efficiently.

Castro Study

A reference to a classic study in social psychology that examined attitudes and persuasion, often associated with the elaboration likelihood model.