TABLE 14-19 The Marketing Manager for a Nationally Franchised Lawn Service Company

question 166

Short Answer

TABLE 14-19
The marketing manager for a nationally franchised lawn service company would like to study the characteristics that differentiate home owners who do and do not have a lawn service. A random sample of 30 home owners located in a suburban area near a large city was selected; 15 did not have a lawn service (code 0) and 15 had a lawn service (code 1). Additional information available concerning these 30 home owners includes family income (Income, in thousands of dollars), lawn size (Lawn Size, in thousands of square feet), attitude toward outdoor recreational activities (Atitude 0 = unfavorable, 1 = favorable), number of teenagers in the household (Teenager), and age of the head of the household (Age).
The Minitab output is given below:
-Referring to Table 14-19, what are the degrees of freedom for the chi-square distribution when testing whether the model is a good-fitting model?

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Definitions:

Epiphyseal Lines

Marks found on bones where growth plates, or epiphyseal plates, have ossified and closed after growth has stopped.

Spongy Bone

A type of bone tissue characterized by a porous, honeycomb structure, found at the ends of long bones and in the inner layers of other bones.

Articular Cartilage

A kind of slick, pale material that envelops the extremities of bones at points where they converge to create joints.

Epiphyseal Plate

A growth plate located at the ends of long bones where new bone tissue is produced during childhood and adolescence.