David Desreumaux,VP of Human Resources of American First Banks (AFB),is $\alpha$

question 38

Multiple Choice

David Desreumaux,VP of Human Resources of American First Banks (AFB) ,is reviewing the employee training programs of AFB banks. Based on a recent census of personnel,David knows that the variance of teller training time in the Southeast region is 8,and he wonders if the variance in the Southwest region is the same number.His staff randomly selected personnel files for 15 tellers in the Southwest Region,and determined that their mean training time was 25 hours and that the standard deviation was 4 hours. Assume that teller training time is normally distributed. Using $\alpha$ = 0.10,the null hypothesis is ________.

• A) \(\mu\) = 25
• B) \(\sigma\)² = 8
• C) \(\sigma\)² = 4
• D) \(\sigma\)² \(\le\) 8
• E) s² = 16

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Definitions:

Factory Overhead

All indirect costs associated with manufacturing, excluding direct materials and direct labor. Examples include utilities, depreciation on factory equipment, and salaries of factory supervisors.

Lean Manufacturing

An orderly technique for minimizing waste in industrial operations while ensuring productivity remains unaffected.

Manufacturing Cells

A layout design in manufacturing where machines and workstations are arranged to optimize the production process and reduce waste, focusing on the manufacturing of a single product or a group of similar products.

Cost Of Production Report

A financial document summarizing the costs associated with the production of goods, including materials, labor, and overhead.