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## Statistics

Define the total sum of square in single factor ANOVA.

A realtor needs to compare the average sales-to-appraisal ratios of residential properties sold in four neighbourhoods (A, B, C, and D). Four properties are arbitrarily selected from each neighbourhood and the ratios recorded for each as follows:

 A B C D 1.2 2.5 1.0 0.8 1.1 2.1 1.5 1.3 0.9 1.9 1.1 1.1 0.4 1.6 1.3 0.7

The ANOVA summary (partial results) is as follows:

 SUMMARY Groups Count Sum Average Variance A 4 3.6 0.900 0.127 B 4 8.1 2.025 0.142 C 4 4.9 1.225 0.049 D 4 3.9 0.975 0.076

 ANOVA Source of Variation SS df MS P-value F crit Between Groups 3.182 3 1.061 0.001 3.490 Within Groups 1.183 12 0.099

What is the entire sum of squares?

(Finish the ANOVA table prior to answering.)

1) 3.182

2) 1.183

3) 4.365

4) None of the above

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M920329

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