SCENARIO 18-12 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 (Attitude 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 Scenario 18-12, which of the following is the correct interpretation for the Income slope coefficient?
Definitions:
Equivalent Unit
A concept used in cost accounting to express the amount of work done by incomplete units in terms of fully completed units.
Weighted-Average Method
An approach to inventory valuation where the cost of goods sold and ending inventory figures are derived from the average cost of all units on sale during that interval.
Process Costing System
A system of accounting used in manufacturing environments where products are mass-produced and costs are accumulated over a period, rather than per job.
Processing Department
A division within a factory where a specific stage of production is completed, often involving a particular set of processes or operations.
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