An Employee of the Bureau of Transportation Statistics Has Been

question 44

Multiple Choice

An employee of the Bureau of Transportation Statistics has been given the task of estimating the proportion of on-time arrivals of a budget airline. A prior study has estimated this on-time arrival rate as 78.5%. What is the minimum number of arrivals this employee must include in the sample to ensure that the margin of error for a 95% confidence interval is no more than 0.05?

• A) 270
• B) 259
• C) 260
• D) 269

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Definitions:

Labor Supply

The total hours that workers are willing and able to work at a given wage rate, in a certain period.

Supplemental Nutrition

Programs or interventions designed to provide additional nutritional support, especially to vulnerable groups such as children, the elderly, or low-income families.

Capital Gains Tax

A tax levied on the profit received from selling a capital asset such as stocks, bonds, or real estate.

Earned Income Tax Credit

A refundable tax credit for low to moderate-income working individuals and families, primarily to benefit those with children.