The Amount of Time Required for an Oil and Filter

question 126

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.95% of all sample means will fall between what two values?

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Definitions:

Premium

The amount by which the price of a security exceeds its principal amount or its value at issuance.

Discount

The reduction from the full amount or value of something, especially the price of a financial instrument or merchandise.

Coupon Rate

The annual interest rate paid by a bond as a percentage of the face value, indicating the income investors can expect to receive.

Interest Rates

The percentage of a sum of money charged for its use, often expressed as an annual percentage.