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2010 Confidence Interval Detail
107/Henderson
129-905/Mabank ISD

Category Summary

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

Stratum
Variance
A 144,254,660 0.9874 146,095,463 65 2,320 .040035035
A 144,894,570 0.9790 148,002,625 41 1,074 .021731569
A 155,120,810 0.9991 155,260,544 30 645 .005314331
A 135,740,230 1.0234 132,636,535 19 328 .007762809
C 12,343,600 1.1512 10,722,377 19 3,804 .203210429
C 12,167,760 1.0756 11,312,533 10 413 .209535084
C 11,704,740 0.8865 13,203,316 9 104 .009302789
C 11,397,360 1.0650 10,701,746 8 32 .009801340
F1 28,494,340 1.1369 25,063,189 12 190 .120429569
F1 30,375,150 0.9601 31,637,486 10 78 .003855360
F1 31,250,540 1.0327 30,261,005 9 31 .008693615
F1 28,501,780 1.0915 26,112,487 5 8 .115396125
L1 10,258,920 1.1878 8,636,909 10 192 .034907966
L1 10,668,670 0.9408 11,339,998 8 51 .027098999
L1 12,947,330 1.0219 12,669,860 6 13 .028802542
Random Totals: 780,120,460   773,656,073 261 9,283  
Catg J Exception Values: 15,075,095   16,459,330      
Catg D1 Exception Values: 600,950   543,187      
Catg L1 Exception Values: 6,831,160   5,786,589      
Total Test Values (4): 802,627,665   796,445,179      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 39,822,259

Confidence Interval Values (5)

State Lower Limit: 756,622,920 (State Test Value minus Margin of Error Percent)
Local Test Value: 802,627,665 (Within Confidence Interval)
State Upper Limit: 836,267,438 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 728,527,248 (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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