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2011 Confidence Interval Detail
129/Kaufman
129-902/Forney ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 389,526,610 0.9957 391,208,808 35 3,338 .010964192
A 385,939,266 1.0130 380,986,442 33 2,558 .004354341
A 388,911,590 0.9752 398,801,877 25 2,040 .009045758
A 336,321,080 0.9966 337,468,473 19 1,243 .010331274
F1 49,377,121 0.8737 56,514,961 10 116 .029947583
F1 44,750,050 0.8937 50,072,787 8 35 .010729595
F1 46,564,540 0.9050 51,452,530 6 15 .050867645
F1 36,010,420 0.8757 41,121,868 4 5 .015858410
Random Totals: 1,677,400,677   1,707,627,746 140 9,350  
Catg D1 Exception Values: 4,547,590   3,055,867      
Total Test Values (4): 1,681,948,267   1,710,683,613      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 85,534,181

Confidence Interval Values (5)

State Lower Limit: 1,625,149,432 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,681,948,267 (Within Confidence Interval)
State Upper Limit: 1,796,217,794 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,292,376,725 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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