10 pages
your friendTable 1
Independent Variable Skewness Values – Pre-Transformation
Descriptive Statistics |
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Skewness |
Std. Error |
Listing price ($) |
.567 |
.309 |
Interior floor size (sqft) |
.141 |
.309 |
Land size (sqft) |
2.412 |
.309 |
# bedrooms |
-.257 |
.309 |
# bathrooms |
-.107 |
.309 |
Year Built |
-.343 |
.309 |
Walkscore |
-.293 |
.309 |
Walkability 70>=1 , 70<=0 |
2.213 |
.309 |
Building age (years) |
.343 |
.309 |
Fireplace |
.511 |
.309 |
Valid N (listwise) |
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Table 2
Independent Variable Skewness Values – Post Transformation
Descriptive Statistics |
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N |
Skewness |
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|
Statistic |
Statistic |
Std. Error |
Price Log 10 |
60 |
-.125 |
.309 |
interior floor size sqft Log 10 |
60 |
-.286 |
.309 |
Land size sqft Log 10 |
60 |
1.058 |
.309 |
Bedrooms Log 10 |
60 |
-.788 |
.309 |
Bathrooms Log 10 |
60 |
-.741 |
.309 |
Year Built Log 10 |
60 |
-.356 |
.309 |
Walk score Log 10 |
60 |
-1.620 |
.309 |
Walkability Log 10 |
8 |
. |
. |
Building age years Log 10 |
60 |
-.393 |
.309 |
Fireplace Log 10 |
58 |
.109 |
.314 |
Valid N (list wise) |
8 |
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Statistics |
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|
LandsizesqftLog10 |
bedroomsLog10 |
bathroomsLog10 |
YearBuiltLog10 |
nteriorfloorsizesqftLog10 |
N |
60 |
60 |
60 |
60 |
60 |
|
24 |
24 |
24 |
24 |
24 |
25 Q1 50 Q2 75 Q3 |
3.7793 |
.6021 |
.4771 |
3.2919 |
3.3907 |
|
3.8622 |
.6990 |
.6505 |
3.2993 |
3.5359 |
|
3.9651 |
.7782 |
.7782 |
3.3045 |
3.6663 |
Table 3
Independent Variable Skewness Values
Variable |
Q1 |
Q3 |
Lower Boundary |
Upper Boundary |
Land size sqft Log 10 |
3.7793 |
3.9651 |
3.37054 |
4.37386
|
Bedrooms Log 10 |
.6021 |
.7782 |
0.21468 |
1.16562 |
Bathrooms Log 10 |
.4771 |
.7782 |
-0.18532 |
1.44062
|
Year Built Log 10 |
3.2919 |
3.3045 |
3.26418 |
3.33222
|
Interior floor size sqft Log 10 |
3.3907 |
3.6663 |
2.78438 |
4.27262 |
Note: Q1 represents the 25th percentile and Q3 represents the 75th percentile. Lower Boundary = Q1 – ((Q3-Q1) X 2.2), and Upper Boundary = Q3 + ((Q3-Q1) X 2.2) (Hoaglin & Iglewicz, 1987)