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2010 Confidence Interval Detail
125/Jim Wells
125-902/Ben Bolt-Palito Blanco ISD

Category Summary

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

Stratum
Variance
A 1,503,964 0.9337 1,610,757 9 71 .003747677
A 1,412,510 0.8826 1,600,397 8 30 .008276696
A 1,456,452 0.9891 1,472,502 6 17 .006240701
A 1,377,942 0.9974 1,381,534 5 11 .003041058
D3 43,799,968 0.9779 44,789,823 20 1,958 .007971292
G1 2,139,261 0.9752 2,193,664 7 23 .012526355
Random Totals: 51,690,097   53,048,677 55 2,110  
Catg J Exception Values: 2,946,425   3,373,495      
Catg D1 Exception Values: 10,538,227   10,862,438      
Catg G1 Exception Values: 913,069   960,304      
Total Test Values (4): 66,087,818   68,244,914      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 3,412,246

Confidence Interval Values (5)

State Lower Limit: 64,832,668 (State Test Value minus Margin of Error Percent)
Local Test Value: 66,087,818 (Within Confidence Interval)
State Upper Limit: 71,657,160 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 70,626,098 (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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