A Random Sample of 22 Employees of a Local Utility

question 79

Short Answer

A random sample of 22 employees of a local utility firm showed that their monthly incomes had a sample standard deviation of $110.Provide a 90% confidence interval estimate for the standard deviation of the incomes of all employees of the firm.

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Definitions:

Products Order

An order placed by a customer or company for specific goods or materials.

Emphasized

To give special importance or prominence to something within a particular context.

Direct Labor Hours

A measure of the work effort contributed by employees who are directly involved in manufacturing goods or providing services, essential for cost and efficiency analysis.

Constrained Resource

A factor of production that limits the output or growth of a process, such as limited raw materials, labor, or machine capacity.