The Width of a Confidence Interval Estimate for a Proportion

question 73

Multiple Choice

The width of a confidence interval estimate for a proportion will be

• A)narrower for 99% confidence than for 95% confidence.
• B)wider for a sample size of 100 than for a sample size of 50.
• C)narrower for 90% confidence than for 95% confidence.
• D)narrower when the sample proportion is 0.50 than when the sample proportion is 0.20.

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Definitions:

Demand Curve

Demand curve is a graphical representation of the relationship between the price of a good or service and the quantity demanded for a given period, typically showing an inverse relationship.

Supply Curve

A graphical representation depicting the relationship between the price of a good or service and the quantity of that good or service that suppliers are willing to offer for sale at that price.

Tax on Each Unit

A fixed amount of tax that is applied to each unit of a certain good or service that is sold.

Total Tax Collection

The cumulative sum of taxes collected by a government from individuals and businesses within a specific timeframe.