TABLE 12-5 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 152

Multiple Choice

TABLE 12-5
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 u₁ and u₂ 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 12-5, what is the critical value when testing whether population proportions are different if α = 0.10?

• A) 2.706
• B) ±1.645
• C) 3.842
• D) ±1.96

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Definitions:

Encoding-Specificity Principle

The Encoding-Specificity Principle suggests that memory recall is most effective when information available at the time of recall is similar to the information present at the time of encoding.

Subjective

Relating to experiences, perspectives, or perceptions that are influenced by personal feelings, tastes, or opinions.

Objective

Pertains to observations or measures that are not influenced by the observer's feelings, interpretations, or prejudice, and thus considered unbiased.

Inaccurate

Not correct, precise, or true; containing errors or mistakes.