Instruction 10-12 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 148

Multiple Choice

Instruction 10-12
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 Instruction 10-12,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:

Fighting

Engaging in a physical conflict or struggle against another person or group.

Internal-Unstable

Attributes related to factors within an individual that can vary, such as effort or mood, influencing their behavior or achievements.

Internal-Stable

A term related to attribution theory, indicating a belief that one's behavior or event outcome is due to personal factors that are consistent over time.

External-Unstable

Characteristics of attributions referring to causes outside oneself that are variable and can change over time.