A Study of 55 Professors Showed That the Average Time $14.5 < \mu < 18.5$

question 93

Multiple Choice

A study of 55 professors showed that the average time they spent creating test questions was 16.5 minutes per question. The standard deviation of the population is 5.8. Which
Of the following is the 99% confidence interval for the average number of minutes it
Takes to create a test question?

• A) \(14.5 < \mu < 18.5\)
• B) \(15.5 < \mu < 17.5\)
• C) \(14.7 < \mu < 18.3\)
• D) \(12.5 < \mu < 20.5\)

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Definitions:

AGI

Adjusted Gross Income (AGI) is a measure of income calculated from your gross income and used to determine how much of your income is taxable.

Depreciation

The accounting process of allocating the cost of a tangible or physical asset over its useful life, used to represent wear and tear or obsolescence.

Net Income

The amount of money remaining after all operating expenses, taxes, and deductions are taken out from total revenue.

Rental Property

Real estate property that is leased or rented to tenants, generating rental income for the owner.