What Sample Size Is Needed to Estimate the Proportion of Highway

question 8

Multiple Choice

What sample size is needed to estimate the proportion of highway speeders within 5 percent using a 90 percent confidence level?

• A) 385
• B) 68
• C) 271
• D) 165

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Definitions:

Standard Deviation

An index quantifying the spread or variability among a collection of numbers, illustrating the distance of values from their average.

Insider Information

Confidential information about a company that has not been made public and that could provide a financial advantage in the stock market.

Securities Commission

A regulatory body responsible for overseeing securities exchanges and protecting investors in the financial market.

Online Bankers

Individuals or entities that perform banking activities through internet platforms.