Suppose a Research Firm Conducted a Survey to Determine the Average

question 52

Multiple Choice

Suppose a research firm conducted a survey to determine the average amount of money steady smokers spend on cigarettes during a week. A sample of 100 steady smokers revealed that the sample mean is $20 and the sample standard deviation is $5. What is the probability that a sample of 100 steady smokers spend between $19 and $21?

• A) 0.4772
• B) 0.0228
• C) 0.9544
• D) $20
• E) None of the choices are correct

---

Definitions:

Taxes

Obligatory charges imposed by authorities on the earnings of employees and the profits of businesses, or applied to the price of various commodities, services, and financial activities.

Total Surplus

The sum of consumer surplus and producer surplus in a market, representing the total benefits to society.

Deadweight Loss

A loss of economic efficiency that can occur when the free market equilibrium for a good or a service is not achieved, often due to market failure, taxes, or subsidies.

Tax Revenue

The income that is obtained by governments through taxation, which is then used to fund public services and government operations.