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2006 Confidence Interval Detail
016/Blanco
016-901/Johnson City ISD

Category Summary

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

Stratum
Variance
A 11,343,330 0.9438 12,018,786 7 193 .049711300
A 11,275,422 0.8133 13,863,792 9 121 .024622541
A 11,348,382 0.9671 11,734,445 8 85 .008615981
A 11,127,919 0.9556 11,644,955 6 56 .004820543
D3 295,680,961 1.0124 292,059,424 61 6,158 .002293772
F1 7,652,238 1.1189 6,839,072 8 66 .015677303
F1 7,811,218 0.8938 8,739,335 6 34 .004645625
F1 7,953,691 1.0338 7,693,646 5 18 .012169315
F1 7,112,767 1.0924 6,511,138 3 6 .042087482
Random Totals: 371,305,928   371,104,593 113 6,737  
Catg J Exception Values: 29,634,370   32,722,814      
Catg D1 Exception Values: 24,034,860   24,019,732      
Total Test Values (4): 424,975,158   427,847,139      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 21,392,357

Confidence Interval Values (5)

State Lower Limit: 406,454,782 (State Test Value minus Margin of Error Percent)
Local Test Value: 424,975,158 (Within Confidence Interval)
State Upper Limit: 449,239,496 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 435,909,401 (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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