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2007 Confidence Interval Detail
226/Tom Green
226-908/Veribest ISD

Category Summary

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

Stratum
Variance
A 4,206,606 0.9198 4,573,392 8 85 .021714631
A 4,143,043 0.9812 4,222,425 8 59 .000589154
A 4,181,670 0.9105 4,592,718 7 47 .010564309
A 4,085,808 0.9720 4,203,506 7 33 .000512483
D3 13,455,225 0.9254 14,539,902 9 991 .057360677
L1 1,337,463 0.9828 1,360,870 6 14 .000598020
L1 1,144,627 1.0144 1,128,378 3 4 .001035455
Random Totals: 32,554,442   34,621,191 48 1,233  
Catg J Exception Values: 2,864,814   2,969,540      
Catg D1 Exception Values: 10,184,460   10,429,241      
Catg L1 Exception Values: 5,705,718   5,816,811      
Total Test Values (4): 51,309,434   53,836,783      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,691,839

Confidence Interval Values (5)

State Lower Limit: 51,144,944 (State Test Value minus Margin of Error Percent)
Local Test Value: 51,309,434 (Within Confidence Interval)
State Upper Limit: 56,528,622 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 64,454,518 (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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