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

question 29

Multiple Choice

TABLE 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:
Source df SS MS F PR > F
Neighborhoods 3.1819 1.0606 10.76 0.001
Error 12
Total 4.3644
-Referring to Table 11-2, the within group mean squares is

• A) 0.0985.
• B) 0.2910.
• C) 1.0606.
• D) 1.1825.

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Definitions:

Aptitude Test

An assessment designed to measure a candidate's ability to perform or learn a particular skill or set of skills.

Unknown Mean

A statistical term referring to the average value of a population or dataset that has not been determined.

Variance

A measure of the dispersion of a set of data points around their mean value.

Final Exam Scores

The grades obtained by students at the end of a course, which often culminate their learning and understanding of the subject material.