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2008 Confidence Interval Detail
229/Tyler
229-903/Woodville ISD

Category Summary

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

Stratum
Variance
A 32,952,669 1.0266 32,098,840 10 1,442 .275607905
A 33,825,275 0.8140 41,554,392 9 743 .055441652
A 42,828,704 0.7893 54,261,629 13 595 .053950138
A 49,628,005 0.9433 52,611,052 18 379 .022954831
D3 49,257,020 0.7809 63,077,244 20 3,263 .100238583
G1 159,990,074 0.9500 168,410,604 11 28 .004032098
G1 149,314,011 0.9952 150,034,175 5 10 .000754671
G1 150,323,071 0.9894 151,933,567 4 7 .001240320
G1 143,868,081 1.0176 141,379,797 3 4 .000056475
Random Totals: 811,986,910   855,361,300 93 6,471  
Catg D1 Exception Values: 28,911,754   28,728,949      
Total Test Values (4): 840,898,664   884,090,249      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 44,204,512

Confidence Interval Values (5)

State Lower Limit: 839,885,737 (State Test Value minus Margin of Error Percent)
Local Test Value: 840,898,664 (Within Confidence Interval)
State Upper Limit: 928,294,761 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 996,466,483 (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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