An Economist Is Interested in Studying the Incomes of Consumers

question 38

Multiple Choice

An economist is interested in studying the incomes of consumers in a particular country.The
Population standard deviation is known to be $1,000.A random sample of 50 individuals
Resulted in a mean income of $15,000.What total sample size would the economist need to
Use for a 95% confidence interval if the width of the interval should not be more than $100?

• A) n = 1537
• B) n = 385
• C) n = 40
• D) n = 20

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Definitions:

Present Value Factors

The factors used in calculating the present value of a sum of money or a stream of cash flows given a specified rate of return.

Market Rate

The prevailing interest rate available in the marketplace for loans or the return on investment securities, varying based on macroeconomic conditions.

Issuance Price

The price at which a company's shares are offered for sale to the public for the first time in an initial public offering (IPO) or the sale price in subsequent offerings.

Stockholders' Equity

The portion of the balance sheet that represents the capital received from investors in exchange for stock (paid-in capital), donated capital and retained earnings of a company.