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2010 Confidence Interval Detail
125/Jim Wells
125-903/Orange Grove ISD

Category Summary

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

Stratum
Variance
A 11,320,292 0.9225 12,271,319 10 269 .004088197
A 11,418,731 0.9491 12,031,115 9 125 .011274523
A 11,085,807 0.9347 11,860,284 9 80 .004501407
A 9,798,026 1.0111 9,690,462 8 41 .007070895
D3 142,733,085 0.9826 145,260,620 20 6,620 .034538971
Random Totals: 186,355,941   191,113,800 56 7,135  
Catg J Exception Values: 6,257,821   6,322,369      
Catg D1 Exception Values: 13,680,093   13,127,610      
Total Test Values (4): 206,293,855   210,563,779      

Margin of Error

Margin of Error Percent: 5.7675755
Margin of Error Value: 12,144,425

Confidence Interval Values (5)

State Lower Limit: 198,419,354 (State Test Value minus Margin of Error Percent)
Local Test Value: 206,293,855 (Within Confidence Interval)
State Upper Limit: 222,708,204 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 204,397,033 (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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