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2009 Confidence Interval Detail
067/Eastland
067-904/Gorman ISD

Category Summary

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

Stratum
Variance
A 3,375,030 1.0467 3,224,448 15 207 .056516018
A 3,681,180 0.9215 3,994,769 15 117 .021461870
A 3,605,350 0.8364 4,310,557 15 74 .033461326
A 3,807,340 0.8878 4,288,511 14 36 .054184931
D3 12,629,090 0.9382 13,460,978 21 1,056 .192950414
F1 700,070 1.1826 591,975 9 26 .101427917
F1 914,060 0.9068 1,008,006 7 11 .032960523
Random Totals: 28,712,120   30,879,244 96 1,527  
Catg J Exception Values: 3,261,410   3,318,103      
Catg D1 Exception Values: 3,222,010   2,879,902      
Catg F1 Exception Values: 1,278,500   1,432,931      
Total Test Values (4): 36,474,040   38,510,180      

Margin of Error

Margin of Error Percent: 6.8554341
Margin of Error Value: 2,640,040

Confidence Interval Values (5)

State Lower Limit: 35,870,140 (State Test Value minus Margin of Error Percent)
Local Test Value: 36,474,040 (Within Confidence Interval)
State Upper Limit: 41,150,220 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 41,887,952 (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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