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2011 Confidence Interval Detail
226/Tom Green
200-902/Miles ISD

Category Summary

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

Stratum
Variance
A 2,214,997 0.9311 2,378,903 10 38 .015687013
A 2,184,125 0.9634 2,267,101 10 24 .010143785
A 2,057,850 1.0120 2,033,449 10 17 .025267043
A 1,664,350 0.9213 1,806,523 5 9 .010847899
D3 11,158,107 0.8757 12,741,929 15 571 .076490005
L1 170,051 0.9818 173,203 8 16 .001728131
Random Totals: 19,449,480   21,401,108 58 675  
Catg J Exception Values: 308,860   313,501      
Catg D1 Exception Values: 6,249,870   5,286,980      
Catg L1 Exception Values: 979,413   935,596      
Total Test Values (4): 26,987,623   27,937,185      

Margin of Error

Margin of Error Percent: 6.5115508
Margin of Error Value: 1,819,144

Confidence Interval Values (5)

State Lower Limit: 26,118,041 (State Test Value minus Margin of Error Percent)
Local Test Value: 26,987,623 (Within Confidence Interval)
State Upper Limit: 29,756,329 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 25,595,582 (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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