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

question 67

Multiple Choice

Solve the problem.
-A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 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)0.8531
• B)0.9146
• C)0.7285
• D)0.8457

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Definitions:

Virtual Network

A digitally constructed network that allows for connections and resource sharing among multiple computers, devices, or virtual entities over the Internet.

Internal Operations

The processes and activities within an organization that contribute to its effective functioning, including production, human resources, and administrative tasks.

External Intelligence

Information gathered from outside an organization to support decision-making processes.

Big Data

Extremely large datasets that may be analysed computationally to reveal patterns, trends, and associations, especially relating to human behavior and interactions.