SCENARIO 11-2
A realtor wants to compare the mean sales-to-appraisal ratios of residential properties sold in four neighborhoods (A,B,C,and D) .Four properties are randomly selected from each neighborhood and the ratios recorded for each,as shown below.
A: 1.2,1.1,0.9,0.4
C: 1.0,1.5,1.1,1.3
B: 2.5,2.1,1.9,1.6
D: 0.8,1.3,1.1,0.7
Interpret the results of the analysis summarized in the following table: 
-Referring to Scenario 11-2,the among group degrees of freedom is
Definitions:
Complexity
The state or quality of being intricate or complicated, often referring to systems, problems, or organizations.
Self-Report
A method in which individuals provide subjective information about their own thoughts, feelings, or behaviors, typically through questionnaires or interviews.
Experimental Study
A research method involving the manipulation of variables to determine cause-and-effect relationships within a controlled environment.
Control Group
The group in an experiment that is treated as much as possible like the experimental group except that it does not participate in the experimental manipulation.
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