TABLE 14-4 A Real Estate Builder Wishes to Determine How House Size

question 345

Multiple Choice

TABLE 14-4
A real estate builder wishes to determine how house size (House) is influenced by family income (Income) , family size (Size) , and education of the head of household (School) . House size is measured in hundreds of square feet, income is measured in thousands of dollars, and education is in years. The builder randomly selected 50 families and ran the multiple regression. Microsoft Excel output is provided below:
-Referring to Table 14-4, one individual in the sample had an annual income of $100,000, a family size of 10, and an education of 16 years. This individual owned a home with an area of 7,000 square feet (House = 70.00) . What is the residual (in hundreds of square feet) for this data point?

• A) 7.40
• B) 2.52
• C) -2.52
• D) -5.40

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Definitions:

Power

The probability that a statistical test will correctly reject a false null hypothesis, or the test's sensitivity to detecting an effect.

Statistical Test

A procedure used to determine whether the observed data significantly deviates from a hypothesis.

Inferential Statistics

A branch of statistics that infers properties about a population based on a sample of data drawn from that population.

Descriptive Statistics

Values that organize and describe the characteristics of a collection of data, sometimes called a data set.