Solve the Problem. -A Study of the Amount of Time It Takes a It

question 83

Multiple Choice

Solve the problem.
-A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier 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 exceeds 8.1 hours.

• A) 0.9146
• B) 0.8457
• C) 0.7285
• D) 0.8531

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Definitions:

Extrinsic

Originating from outside rather than within a person or object, often referring to external motivators or factors.

Native

A term referring to the first inhabitants of a region or the original naturally occurring species in a specific ecosystem.

Specific

Clearly defined or identified; precise or particular in nature.