One Way of Decreasing the Standard Deviation of the Distribution

question 22

Multiple Choice

One way of decreasing the standard deviation of the distribution of means in a planned study, thereby increasing power, is to have a larger number of participants. Another would be to:

• A)use a more stringent alpha level
• B)use the sample variance in place of the variance of the population
• C)change the minimum meaningful difference.
• D)use a less diverse population

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Definitions:

Internal Rate Of Return

A metric used in financial analysis to estimate the profitability of potential investments.

Present Value

The contemporary valuation of money to be obtained later or ongoing cash receipts, using a set rate of return for calculations.

Time Value Of Money

The principle that money possessed now holds greater value than the same quantity anticipated in the future, given its potential to earn more.

Capital Investment Analysis

The process of evaluating and comparing potential investments or expenses to determine their profitability and financial impact on a business.