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2010 Confidence Interval Detail
217/Stonewall
217-901/Aspermont CISD

Category Summary

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

Stratum
Variance
A 2,618,466 0.7937 3,299,063 16 205 .057707884
A 2,704,790 0.8491 3,185,479 12 112 .027491848
A 2,638,510 0.8853 2,980,357 14 74 .051974541
A 2,674,200 0.9692 2,759,183 9 41 .003752639
D3 11,608,353 0.7481 15,517,114 29 3,074 .046785348
G1 25,832,380 1.0059 25,680,863 9 61 .044444520
G1 27,061,291 1.0502 25,767,750 7 25 .004289909
G1 24,751,709 1.0180 24,314,056 5 9 .001767118
G1 25,272,058 1.0549 23,956,828 3 4 .002278307
Random Totals: 125,161,757   127,460,693 104 3,605  
Catg J Exception Values: 4,592,313   4,293,772      
Catg D1 Exception Values: 28,973,750   27,791,259      
Catg G1 Exception Values: 40,100,880   41,651,244      
Total Test Values (4): 198,828,700   201,196,968      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,059,848

Confidence Interval Values (5)

State Lower Limit: 191,137,120 (State Test Value minus Margin of Error Percent)
Local Test Value: 198,828,700 (Within Confidence Interval)
State Upper Limit: 211,256,816 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 216,602,360 (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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