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2012 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 186,806,372 0.9497 196,700,402 41 3,444 .015260750
A 187,789,687 0.9894 189,801,584 49 1,874 .006299193
A 192,422,731 0.9839 195,571,431 39 1,368 .002074824
A 183,047,214 0.9641 189,863,307 16 726 .001274019
F1 150,750,435 1.0064 149,791,768 10 550 .033776770
F1 151,539,827 0.8883 170,595,325 10 148 .043086352
F1 153,683,446 0.9594 160,187,040 9 60 .031022853
F1 147,294,612 1.0122 145,519,277 7 19 .002758181
L1 54,618,536 1.0826 50,451,262 10 541 .019479626
L1 51,940,566 1.0795 48,115,392 9 126 .140666471
L1 53,485,694 1.0792 49,560,502 9 46 .021330687
L1 55,897,877 1.0223 54,678,545 6 13 .000386165
Random Totals: 1,569,276,997   1,600,835,835 215 8,915  
Catg D1 Exception Values: 799,654   730,591      
Total Test Values (4): 1,570,076,651   1,601,566,426      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 80,078,321

Confidence Interval Values (5)

State Lower Limit: 1,521,488,105 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,570,076,651 (Within Confidence Interval)
State Upper Limit: 1,681,644,747 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,820,805,442 (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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