A realtor wants to compare the variability of 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 were collected.Which of the following tests will be the most appropriate?
A)Kruskal-Wallis rank Test.
B)Tukey-Kramer multiple comparisons procedure for one-way ANOVA.
C)Levene's test.
D)Wilcoxon rank sum test.

Question

Quizplus · Accepted Answer

Levene's test is the most appropriate choice for comparing the variability (as opposed to the means) of sales-to-appraisal ratios across multiple groups. It specifically tests for equality of variances across groups.

A Realtor Wants to Compare the Variability of Sales-To-Appraisal Ratios