The Width of a Confidence Interval Estimate for a Proportion

question 205

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 if 0.50 than when the sample proportion is 0.20
• E) none of these

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Definitions:

Balance Sheet

A report detailing a corporation's assets, liabilities, and equity held by shareholders at a particular moment.

Equity

Ownership interest in a company, represented by shares, which gives shareholders a claim on part of the company's assets and earnings.

Equity Financed

The method of raising capital through the sale of shares in a company.

Retained Earnings

The portion of a company’s profit that is held back and not distributed to shareholders as dividends, to be reinvested in the business.