A Large Department Store Examined a Sample of the 18

question 26

Multiple Choice

A large department store examined a sample of the 18 credit card sales and recorded the amounts charged for each of three types of credit cards: MasterCard, Visa and American Express. Six
MasterCard sales, seven Visa and five American Express sales were recorded. The store used
ANOVA to test if the mean sales for each credit card were equal. What are the degrees of freedom for the F statistic?

• A) 18 in the numerator, 3 in the denominator
• B) 3 in the numerator, 18 in the denominator
• C) 2 in the numerator, 15 in the denominator
• D) 0 in the numerator, 15 in the denominator
• E) None of these statements are true

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Definitions:

Environments

The setting or circumstances in which a person, animal, or plant grows or functions.

Nature

the physical world collectively, including plants, animals, the landscape, and other features and products of the earth as opposed to humans or human creations.

Nurture

Nurture refers to the influence of environmental factors, including education, culture, and life experiences, on the development and behavior of an individual, in contrast to genetically inherited traits.

Biological Influences

Biological influences are factors stemming from an organism's physiology and genetics that affect its behavior, development, and functioning.