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2011 Confidence Interval Detail
004/Aransas
004-901/Aransas County ISD

Category Summary

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

Stratum
Variance
A 484,591,451 0.9737 497,680,447 57 4,688 .008377149
A 478,807,429 0.9766 490,279,981 59 2,239 .006128418
A 492,082,822 0.9934 495,352,146 31 1,365 .007484331
A 478,514,470 0.9700 493,313,887 14 632 .005598329
C 64,695,184 0.8963 72,180,279 11 3,254 .186860105
C 58,346,060 1.0004 58,322,731 10 851 .020815065
C 57,923,290 0.9848 58,817,313 10 343 .016576477
C 59,464,260 0.9852 60,357,552 10 118 .027049450
F1 59,926,719 0.9871 60,709,876 10 343 .029249672
F1 61,802,705 0.9685 63,812,808 9 129 .009775366
F1 67,649,705 0.9526 71,015,857 8 59 .009461520
F1 54,350,120 1.0239 53,081,473 6 16 .034791536
Random Totals: 2,418,154,215   2,474,924,350 235 14,037  
Catg D1 Exception Values: 5,691,730   7,306,160      
Total Test Values (4): 2,423,845,945   2,482,230,510      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 124,111,526

Confidence Interval Values (5)

State Lower Limit: 2,358,118,984 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,423,845,945 (Within Confidence Interval)
State Upper Limit: 2,606,342,036 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,451,907,710 (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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