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2009 Confidence Interval Detail
229/Tyler
229-901/Colmesneil ISD

Category Summary

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

Stratum
Variance
A 9,781,754 0.8463 11,558,258 15 377 .067833625
A 10,734,268 0.8597 12,486,063 15 229 .015398310
A 11,807,346 0.9331 12,653,891 16 166 .056662981
A 12,458,966 0.8599 14,488,855 17 101 .034264978
D3 28,251,538 1.0389 27,193,703 20 1,981 .051628817
G1 4,018,824 0.9304 4,319,458 4 9 .005694144
Random Totals: 77,052,696   82,700,228 87 2,863  
Catg J Exception Values: 4,501,320   4,147,560      
Catg D1 Exception Values: 20,309,036   19,762,802      
Catg G1 Exception Values: 5,059,005   4,878,950      
Total Test Values (4): 106,922,057   111,489,540      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,574,477

Confidence Interval Values (5)

State Lower Limit: 105,915,063 (State Test Value minus Margin of Error Percent)
Local Test Value: 106,922,057 (Within Confidence Interval)
State Upper Limit: 117,064,017 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 101,347,850 (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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