A Group of Statistics Students Decided to Conduct a Survey

question 31

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 of finding a sample mean less than 18 hours?

• A)0.4820
• B)0.4920
• C)0.0080
• D)0.0180

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Definitions:

Current Liability

Financial obligations or debts that a company is expected to settle within one year or within its normal operating cycle.

Current Assets

Assets that are expected to be converted into cash, sold, or consumed within one year or within the business's normal operating cycle, whichever is longer.

Stockholders' Equity

The residual interest in the assets of a corporation that remains after deducting its liabilities; essentially the net worth of a company.