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

question 32

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 and 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,if the firm wanted to test whether this proportion has changed from the previous study,which represents the relevant hypotheses?

• A)H₀ : π₁ - π₂ = 0 versus H₁ : π₁ - π₂ ≠ 0
• B)H₀ : π₁ - π₂ ≠ 0 versus H₁ : π₁ - π₂ = 0
• C)H₀ : π₁ - π₂ ≤ 0 versus H₁ : π₁ - π₂ > 0
• D)H₀ : π₁ - π₂ ≥ 0 versus H₁ : π₁ - π₂ < 0

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Definitions:

Hyperthermia

Situation in which body temperature exceeds the set point.

Thermoregulatory Mechanisms

Physiological processes that maintain the body's internal temperature within a normal healthy range, regardless of external conditions.

Unresponsive

A state in which a person is not reacting to stimuli or commands, often indicating a serious medical condition.

Carotid Pulse

The pulse that can be felt on either side of the neck over the carotid artery, often checked during emergency situations to assess heart function.