Find the Minimum Sample Size When We Want to Construct

question 109

Multiple Choice

Find the minimum sample size when we want to construct a 95% confidence interval on the population proportion for the support of candidate A in the following mayoral election. Candidate A is facing two opposing candidates. In a preselected poll of 100 residents, 22 supported candidate B and 14 supported candidate C. The desired margin of error is 0.06.

• A) n = 173
• B) n = 174
• C) n = 245
• D) n = 246

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Definitions:

Yield To Maturity

The total return anticipated on a bond if it is held until the date it matures, including interest payments and the gain or loss due to the difference between its purchase price and its face value.

Face Value

The nominal or dollar value of a security stated by the issuer, primarily relevant for bonds and the amount repaid at maturity.

Yield To Maturity

The total return anticipated on a bond if it is held until the date it matures, including both interest payments and capital gains.

Real Rate Of Return

The annual percentage profit earned on an investment, adjusted for changes in the price level due to inflation or other external effects.