Instruction 10-9 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 88

Multiple Choice

Instruction 10-9
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 10-9,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:

Conscientiousness

A characteristic feature defined by one's ability to organize, their reliability, and a deep commitment to fulfilling obligations.

Extraversion

A character quality marked by the ability to socialize, engage in conversation actively, demonstrate assertiveness, and express emotions vividly.

Neuroticism

A personality trait characterized by anxiety, moodiness, worry, envy, and jealousy.

Psychological Test

A standardized measure of a sample of a person's behavior or mental processes used to assess psychological constructs.