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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 18-10 Model 1,which of the following is the correct null hypothesis to test whether being married or not makes a difference in the mean number of weeks a worker is unemployed due to a layoff while holding constant the effect of all the other independent variables?
Relative Frequencies
The ratio of the number of times a particular value occurs to the total number of observations.
Distribution
Distribution in statistics refers to the way in which values of a variable or observations are spread out or scattered across a range, showing the frequency of each value.
Sum
The result of adding two or more numbers or quantities together to get a total.
Relative Frequency Distribution
A statistical measure that shows the frequency of different outcomes in a dataset relative to the total number of outcomes.
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