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

question 93

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,the company tests to determine at the 0.05 level whether the population proportion has changed from the previous study.Which of the following is most correct?

• A)Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has changed over the intervening 10 years.
• B)Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.
• C)Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.
• D)Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has not changed over the intervening 10 years.

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Definitions:

Office Supplies

Consumable items that are used in offices on a day-to-day basis for administrative and office-related tasks, such as paper, pens, and staples.

Petty Cash Fund

A small amount of cash kept on hand for minor, immediate expenses to avoid the complexities of writing checks.

Missing Funds

Refers to a situation where there is a discrepancy between expected and actual funds, indicating that money might be unaccounted for or lost.

Office Supplies

Items used in offices for daily operations, such as paper, pens, and other stationery items, usually considered short-term assets.