The output below shows an ANOVA comparing mean house selling prices (in $000) by

Question

The output below shows an ANOVA comparing mean house selling prices (in $000) by age category (New 0- 24 years old, Medium 25- 50 years old, Old 51 to 74 years old, and Very Old years old) If we wanted to test the following contrast: 75+ SUMMARY Groups Count Sum Average Std. Deviation Medium New Old Very Old 71 17295.6 78 23852.4 7980.9 4362.4 243.6 305.8 215.7 311.6 79.5 125.9 85.3 188.5 37 ANOVA MS 93757.3 12181.6 P-value Source of Variation Between Groups Within Groups 7.706.89902E-05 281272 2387598 196 2668870 199 What is the value of the sample contrast? Provide the answer in the box below to one decimal place, e.g., 5432.1 or -5432.1. Round at the end as needed

Explanation / Answer

Result:

3µnew - µmedium- µold- µveryold

=3*305.8-243.6-215.7-311.6

=146.5

Value of the contrast = 146.5

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