A Study of the Amount of Time It Takes a Mechanic

question 160

Multiple Choice

A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010 Chevrolet Colorado shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are randomly selected,
Find the probability that their mean rebuild time is less than 8.9 hours.

• A) 0.4276
• B) 0.9589
• C) 0.9756
• D) 0.9608

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Definitions:

Unnecessary Expense

Costs that are not essential for the operation or growth of a business or personal finances, often identified for reduction or elimination in budgeting efforts.

Employee Relations

An HR discipline concerned with strengthening the employer-employee relationship through measuring job satisfaction, employee engagement, and resolving workplace conflicts.

Conducting Attitude Surveys

The process of gathering and analyzing data on the perceptions, opinions, or feelings of individuals or groups towards specific subjects or issues.

Human Capital

An organization's employees, described in terms of their training, experience, judgment, intelligence, relationships, and insight.