TABLE 10-17
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 Table 10-17, the within group mean squares is ________.
A) 0.0985
B) 0.2910
C) 1.0606
D) 1.1825

Question

TABLE 10-17
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 Table 10-17, the within group mean squares is ________.
A) 0.0985 
B) 0.2910 
C) 1.0606 
D) 1.1825

Quizplus · Accepted Answer

Within group mean squares is the mean of the variance within each group. In this case, the within group mean squares is 0.0985.

TABLE 10-17 a Realtor Wants to Compare the Mean Sales-To-Appraisal Ratios of Ratios