Use the Given Degree of Confidence and Sample Data to Construct

question 159

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean $\mu$ . Assume that the population has a normal distribution.
-A laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with s = 17.6 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such
Eggs.

• A) \(175.9 \mathrm { mg } < \mu < 194.1 \mathrm { mg }\)
• B) \(173.7 \mathrm { mg } < \mu < 196.3 \mathrm { mg }\)
• C) \(173.9 \mathrm { mg } < \mu < 196.1 \mathrm { mg }\)
• D) \(173.8 \mathrm { mg } < \mu < 196.2 \mathrm { mg }\)

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Definitions:

Breakeven Volume

The quantity of output or sales at which total revenues equal total costs, resulting in no profit or loss.

Sales Revenues

The total amount of money generated from sales of goods or services by a company before any expenses are subtracted.

Contribution Margin

The difference between sales revenue and variable costs, used to cover fixed costs and generate profit.

Direct Cost

A direct cost is an expense that can be directly attributed to the production of specific goods or services, such as raw materials and labor.