A Wine Magazine Wants to Know If Chefs Can Tell

question 24

Multiple Choice

A wine magazine wants to know if chefs can tell the difference between duck liver pâté and wet dog food. Eighteen chefs were asked to rate both the pâté and dog food on a scale from 1 to 5, with 1 corresponding to "inedible" and 5 to "very tasty." The results are shown in the following table. The estimate of the population proportion of plus signs is ________.

• A) 0.944
• B) 0.50
• C) 0.056
• D) None of these choices is correct.

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Definitions:

Rate Of Return

The rise or fall in an investment's value over a set period, shown as a percentage of the investment's initial expense.

Annual Dividend

The total amount of dividend that is paid by a company to its shareholders annually, typically represented as a sum of money for each share held.

Market Rate

The prevailing interest rate available in the marketplace on investments, loans, and deposits, reflecting the current cost of borrowing or the return on investment.

Required Return

The minimum annual percentage yield that an investor expects or requires from an investment.