If an Increase in Income Leads to a Decrease in the Demand

question 69

Multiple Choice

If an increase in income leads to a decrease in the demand for popcorn, then popcorn is

• A)an inferior good.
• B)a neutral good.
• C)a necessity.
• D)a normal good.

Calculate and interpret test statistics, critical values, and make conclusions in hypothesis testing.

Describe the use of p-value in testing hypotheses and making decisions.

Construct and interpret confidence intervals for population proportions.

Differentiate between one-tail and two-tail tests and their implications on p-values and error types.