The Amount of Time Required for an Oil and Filter

question 78

Short Answer

The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes.A random sample of 16 cars is selected.What is the probability that the sample mean will be between 39 and 48 minutes?

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Definitions:

Debits And Credits

The two sides of accounts in double-entry bookkeeping; debits represent increases in assets or expenses and decreases in liabilities or equity, while credits do the inverse.

Slide

An error in which the entire number is moved one or more spaces to the right or the left, such as writing $542.00 as $54.20 or $5,420.00.

Accounting Equation

A fundamental principle of accounting expressing the relationship between assets, liabilities, and equity.

Decreases

A reduction in the size, quantity, or importance of something.