A Random Sample of Records of Electricity Usage of Homes

question 16

Multiple Choice

A random sample of records of electricity usage of homes gives the amount of electricity used in July and size (in square feet) of 135 homes.A regression was done to predict the amount of electricity used (in kilowatt-hours) from size.Suppose the linear model is appropriate.What units does the slope have?

• A)Slope is kilowatt-hours per square foot.
• B)Slope is kilowatt-hours per house.
• C)Slope is square feet per kilowatt-hour.
• D)Slope is square feet per house.
• E)Slope is houses per kilowatt-hour.

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Definitions:

Antebellum Period

The time period in the United States before the Civil War, noted for its growing divisions over slavery.

Population

The total number of people inhabiting a particular area or country.

Antebellum Period

The era in the United States history immediately before the Civil War, marked by the division over slavery and states' rights, approximately between the late 18th century and 1861.

Eastern Seaboard

Refers to the eastern coast of the United States, stretching from Maine to Florida, known for its significant historical, economic, and cultural importance.