A Researcher Wants to Determine the Sample Size Necessary to Adequately

question 34

Multiple Choice

A researcher wants to determine the sample size necessary to adequately conduct a study to estimate the population mean to within 5 points.The range of population values is 80 and the researcher plans to use a 90% level of confidence.The sample size should be at least _______.

• A)44
• B)62
• C)216
• D)692
• E)700

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Definitions:

Fixed Costs

Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and insurance.

Activity Changes

Adjustments or variations in the level of a company's activities, such as production volume or sales, that can impact its costs and operational efficiency.

Straight-Line Depreciation

A method for distributing the cost of a solid asset in even annual payments throughout its effective life.

Insurance Premiums

The amount of money that an individual or business must pay for an insurance policy.