A Certain Population Is Bimodal

question 317

Multiple Choice

A certain population is bimodal. We want to estimate its mean, so we will collect a sample. Which
Should be true if we use a large sample rather than a small one?
I. The distribution of our sample data will be more clearly bimodal.
II. The sampling distribution of the sample means will be approximately normal.
III. The variability of the sample means will be smaller.

• A) I only
• B) III only
• C) II only
• D) I, II, and III
• E) II and III

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Definitions:

Tax

A compulsory financial charge or other levy imposed by a government on individuals or businesses to fund various public expenditures.

Binding Price Floor

A legal minimum price for a good or service that is set above the equilibrium price, resulting in surpluses.

Binding Price Ceiling

A government-imposed limit on how high a price can be charged for a product, set below the market equilibrium price, leading to shortages.

Decreases

A reduction in size, quantity, or degree; the opposite of increases.