TABLE 10-11 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 172

Multiple Choice

TABLE 10-11
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 10-11, what is/are the critical value(s) when testing whether population proportions are different if α = 0.10?

• A) ± 1.645
• B) ± 1.96
• C) -1.96
• D) ± 2.08

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Definitions:

Depolarization

A decrease in the voltage difference across a cell's plasma membrane, resulting in a more positive internal environment.

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Essential ions within the body that play pivotal roles in bone health, muscle contraction, nerve function, and blood clotting.

G Actin

Globular protein molecules that, when bound together, form fibrous actin (F actin).

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Mammals that are primarily adapted to living in water, including species such as whales, dolphins, and seals.