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2010 Confidence Interval Detail
158/Matagorda
158-906/Van Vleck ISD

Category Summary

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

Stratum
Variance
A 66,749,490 1.0244 65,159,596 16 1,151 .037045633
A 72,427,966 0.9029 80,217,041 14 635 .009272698
A 72,248,980 1.0297 70,165,077 12 455 .073718259
A 75,004,320 1.1090 67,632,390 11 294 .028882934
C 20,448,021 0.9470 21,592,419 10 2,090 .022307384
C 12,273,450 0.9502 12,916,702 11 416 .017667247
C 20,720,390 0.9060 22,870,188 11 369 .040436929
C 10,365,470 1.0160 10,202,234 9 102 .017806445
D3 50,644,570 0.9536 53,108,819 16 3,157 .040705580
G1 13,658,500 0.9231 14,796,338 6 16 .329452684
G1 14,275,313 0.9780 14,596,435 4 6 .004033867
Random Totals: 428,816,470   433,257,239 120 8,691  
Catg J Exception Values: 12,680,530   13,916,584      
Catg D1 Exception Values: 15,922,561   19,336,151      
Catg G1 Exception Values: 51,878,800   48,349,711      
Total Test Values (4): 509,298,361   514,859,685      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,742,984

Confidence Interval Values (5)

State Lower Limit: 489,116,701 (State Test Value minus Margin of Error Percent)
Local Test Value: 509,298,361 (Within Confidence Interval)
State Upper Limit: 540,602,669 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 539,376,404 (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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