A Study of Elephants Is Conducted to Determine the Average

question 9

Multiple Choice

A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 95% level, how many elephants need to be weighed so the average weight will be accurate to within 250 pounds?

• A) 139
• B) 165
• C) 196
• D) 324

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Definitions:

Social Security Tax

Taxes collected from employees and employers to fund the Social Security program, which provides retirement, disability, and survivor benefits.

Federal Budget

The government’s estimation of revenue and spending for a forthcoming fiscal year that includes allocations of funds to various federal departments and agencies.

Defense Spending

Government expenditure on military forces and activities, including salaries, equipment, construction, and research and development.

Means of Production

The facilities, resources, and tools used to produce goods and services in an economy, often discussed in Marxist economic theories.