A Group of Statistics Students Decided to Conduct a Survey

question 90

Multiple Choice

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spend studying per week. Based on a simple random sample, they surveyed 144 students. The statistics showed that students studied an average of 20 hours per week with a standard deviation of 10 hours. What is the probability that a sample mean would exceed 20 hours per week?

• A) 1.0
• B) 0.5
• C) 1.96
• D) Cannot be calculated based on the given information.

---

Definitions:

Goodwill Method

An accounting approach for handling goodwill during a business combination, where goodwill is not amortized but tested annually for impairment.

Capital Balances

The amounts shown in a company’s books representing the capital owned by partners or shareholders.

Profit and Loss

A financial statement, also known as an income statement, that provides a summary of a company's revenues, expenses, and profits/losses over a given period of time.

Partnership

A formally established way of running a business by two or more participants who equally handle the administration and profit-sharing.