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2006 Confidence Interval Detail
226/Tom Green
226-901/Christoval ISD

Category Summary

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

Stratum
Variance
A 15,233,766 0.9333 16,322,475 7 295 .000911457
A 15,225,203 0.9433 16,140,361 8 155 .000189828
A 15,263,325 0.9590 15,915,876 10 102 .000712204
A 15,032,139 0.9845 15,268,805 6 62 .000540214
D3 15,596,100 0.9823 15,877,125 11 1,376 .001109190
G1 2,358,425 0.9800 2,406,556 5 17 .023554622
G1 2,601,490 1.0725 2,425,632 4 9 .007693492
G1 2,671,942 0.9257 2,886,402 3 4 .003474392
Random Totals: 83,982,390   87,243,232 54 2,020  
Catg J Exception Values: 5,026,870   5,059,618      
Catg D1 Exception Values: 10,048,440   9,324,376      
Catg G1 Exception Values: 5,225,500   4,967,378      
Total Test Values (4): 104,283,200   106,594,604      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,329,730

Confidence Interval Values (5)

State Lower Limit: 101,264,874 (State Test Value minus Margin of Error Percent)
Local Test Value: 104,283,200 (Within Confidence Interval)
State Upper Limit: 111,924,334 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 104,909,199 (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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