To Find the Standard Deviation of the Diameter of Wooden $\sigma _ { . }$

question 75

Multiple Choice

To find the standard deviation of the diameter of wooden dowels, the manufacturer measures 19 randomly selected dowels and finds the standard deviation of the sample to be s = 0.16. Find the 95% confidence interval
For the population standard deviation $\sigma _ { . }$

• A) \(0.11 < \sigma < 0.25\)
• B) \(0.15 < \sigma < 0.21\)
• C) \(0.12 < \sigma < 0.24\)
• D) \(0.13 < \sigma < 0.22\)

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Definitions:

Capital Budgeting

The process by which a business evaluates and selects major capital investments based on their potential to generate additional revenue or reduce costs.

Simple Rate of Return

A method to evaluate the profitability of an investment by dividing the annual incremental net operating income by the initial investment cost.

Operating Expenses

Costs associated with a company’s operational activities, excluding direct labor and materials, that are necessary to run the business.

Sales Revenues

The total amount generated from selling goods or services before any expenses are subtracted.