EdmundsCom Would Like to Test the Hypothesis That the Standard

question 18

Multiple Choice

Edmunds.com would like to test the hypothesis that the standard deviation for the age of an imported car on the road is greater than the standard deviation for the age of a domestic car. The following data shows the ages of a random sample of import and domestic cars. Which of the following would be the correct hypothesis test?

• A) Η₀: / ≤ 1, Η_A: / > 1
• B) Η₀: / ≤ 1, Η_A: / > 1
• C) Η₀: / = 1, Η_A: / ≠ 1
• D) Η₀: / ≥ 1, Η_A: / < 1

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Definitions:

Infrared Spectrum

A spectrum representing the infrared absorption or emission by a substance, used to identify chemical functionalities and molecular structure.

Mass Spectrum

A plot or record that shows the distribution of ions by mass in a sample, used to determine the composition of a substance.

Base Peak

In mass spectrometry, the most intense peak representing the ion that is the most abundant.

Pentanoic Acid

A short-chain fatty acid with five carbon atoms, also known as valeric acid, with a strong, pungent odor.