Find the Minimum Sample Size Required to Estimate a Population

question 6

Short Answer

Find the minimum sample size required to estimate a population proportion p .
-Margin of error: four percentage points; confidence level: 95%; from a prior study, ˆp is estimated by the decimal equivalent 12.5%

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Definitions:

Profitability Index

A financial tool used to determine the desirability of an investment or project by dividing the present value of future cash flows by the initial investment cost.

Rate Of Return

The gain or loss on an investment over a specified time period, expressed as a percentage of the investment's initial cost.

Profitability Index

A financial tool used to determine the desirability of an investment or project, calculated by dividing the present value of future cash flows by the initial investment cost.

Required Return

The minimum rate of return an investor expects to receive from an investment, taking into account the investment's risk level.