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2010 Confidence Interval Detail
019/Bowie
019-907/Texarkana ISD

Category Summary

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

Stratum
Variance
A 173,246,795 1.0016 172,970,043 50 3,327 .016250931
A 174,578,052 1.0021 174,212,206 41 1,833 .006715138
A 195,240,219 1.0012 195,006,212 57 1,452 .012810304
A 204,574,767 0.9945 205,706,151 21 854 .004701187
F1 146,431,922 0.9513 153,928,227 13 554 .021625665
F1 140,423,709 0.8673 161,909,038 9 141 .022629572
F1 148,916,063 0.9703 153,474,248 10 61 .011471083
F1 141,916,003 1.0097 140,552,642 6 18 .017334888
L1 59,440,297 0.9437 62,986,433 10 557 .093718884
L1 56,015,953 0.9481 59,082,326 9 121 .029531261
L1 43,687,174 0.9673 45,164,038 8 38 .026836704
L1 52,931,165 1.0218 51,801,884 6 14 .004129482
Random Totals: 1,537,402,119   1,576,793,448 240 8,970  
Catg J Exception Values: 29,060,470   26,140,561      
Catg D1 Exception Values: 775,061   707,867      
Total Test Values (4): 1,567,237,650   1,603,641,876      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 80,182,094

Confidence Interval Values (5)

State Lower Limit: 1,523,459,782 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,567,237,650 (Within Confidence Interval)
State Upper Limit: 1,683,823,970 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,790,265,087 (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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