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, which of the following is the correct interpretation for the Income slope coefficient?
Definitions:
Aptitude Tests
Exams standardized to evaluate a person's capability in learning and obtaining skills and knowledge.
Intelligence Tests
Standardized tests designed to measure a person's ability to think, reason, and solve problems.
Mental Abilities
Cognitive capacities that include reasoning, problem-solving, planning, abstract thinking, and learning from experience.
Achievement Test
An assessment designed to measure a person's knowledge or proficiency in a particular area.
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