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 numerator and denominator degrees of freedom for Levene's test for homogeneity of variances at a 5% level of significance are,respectively,
A)3,12
B)12,3
C)3,15
D)15,3

Question

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 numerator and denominator degrees of freedom for Levene's test for homogeneity of variances at a 5% level of significance are,respectively,
A)3,12 
B)12,3 
C)3,15 
D)15,3

Quizplus · Accepted Answer

Levene's test for homogeneity of variances uses the formula (k-1, N-k) for degrees of freedom, where k is the number of groups and N is the total number of observations. In this scenario, the numerator degrees of freedom is 3 (k-1) and the denominator degrees of freedom is 12 (N-k).

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