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:

Croissants

A buttery, flaky pastry of Austrian origin that is crescent-shaped and commonly associated with French cuisine.

Local Restaurants

Eating establishments that are typically owned and operated by individuals or families, often offering unique menus and flavors particular to their local community.

Direct Marketing Channel

A method of selling products or services directly to customers without the use of intermediaries.

Fulfillment Center

Warehouse facilities used to ship merchandise directly to customers.