A Local Eat-In Pizza Restaurant Wants to Investigate the Possibility

question 95

Multiple Choice

A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 36 minutes. The owner has randomly selected 21 customers and delivered pizzas to their homes in order to test whether the mean delivery time actually exceeds 36 minutes. What assumption is necessary for this test to be valid?

• A) The sample mean delivery time must equal the population mean delivery time.
• B) The population variance must equal the population mean.
• C) None. The Central Limit Theorem makes any assumptions unnecessary.
• D) The population of delivery times must have a normal distribution.

---

Definitions:

Tax Reform Act

Legislation aimed at altering the tax system, typically involving changes in tax rates, tax policies, and tax revenue allocations.

Kemp-Roth Tax Cut

A significant federal tax reduction in the United States passed in 1981 aimed at stimulating economic growth through lower individual income tax rates.

Corporate Income Tax

Taxes levied on the profits earned by corporations, which vary by country and influence companies' financial strategies.

Excise Taxes

Taxes levied on the sale of specific goods and services, such as gasoline, cigarettes, and alcohol.