SCENARIO 11-2 a Realtor Wants to Compare the Mean Sales-To-Appraisal Ratios of Ratios

Multiple Choice

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

A) 3
B) 4
C) 12
D) 16