A Confidence Interval Was Used to Estimate the Proportion of Statistics

question 36

Multiple Choice

A confidence interval was used to estimate the proportion of statistics students who are female.A random sample of 72 statistics students generated the following 90% confidence interval: (0.438, 0.642) .Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within using 95% confidence?

• A)105
• B)150
• C)420
• D)597

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Definitions:

Income Before Taxes

A company's earnings before tax is deducted, an indicator of financial performance excluding tax expenses.

Cash Sales

Transactions where customers pay for goods or services in cash at the point of sale, resulting in immediate revenue.

Credit Sales

Sales made on credit, allowing customers to purchase goods or services and pay for them at a later date.

Loss from Sale

An unfavorable difference between the selling price of an asset and its book value, leading to a financial loss for the entity.