The Tread Life of Tires Mounted on Light-Duty Trucks Follows

question 24

Multiple Choice

The tread life of tires mounted on light-duty trucks follows the normal probability distribution with a population mean of 60,000 miles and a population standard deviation of 4,000 miles. Suppose we select a sample of 40 tires and use a simulator to determine the tread life. What is the likelihood of finding that the sample mean is between 59,050 and 60,950?

• A)0.4332
• B)0.8664
• C)1.00
• D)Very likely

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Definitions:

Precondition

A condition that must be met or required before another event or operation can occur.

Initiating Structure

A leadership behavior that focuses on defining roles, tasks, and relationships in the pursuit of goal achievement.

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The degree to which job tasks are defined, including clarity, procedures, and goals, influencing how tasks are executed.

Supportive Behaviour

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