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2006 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 156,864,712 0.9143 171,568,098 59 3,613 .026904358
A 156,826,424 0.9573 163,821,607 58 1,904 .007057471
A 156,829,747 0.9941 157,760,534 56 1,319 .006761810
A 156,724,853 0.9980 157,038,931 29 670 .009360847
F1 112,796,615 0.9572 117,840,174 7 533 .005452677
F1 112,484,994 0.9204 122,213,162 9 145 .008196787
F1 114,372,628 0.9239 123,793,298 7 53 .027113441
F1 110,527,415 0.9677 114,216,612 5 13 .000921589
L1 53,151,716 1.0344 51,384,103 7 566 .078331152
L1 53,235,282 1.0862 49,010,571 7 136 .006505129
L1 54,548,681 0.9736 56,027,815 6 51 .005329481
L1 51,064,922 0.9522 53,628,357 5 13 .004187099
Random Totals: 1,289,427,989   1,338,303,262 255 9,016  
Catg D1 Exception Values: 827,670   831,252      
Total Test Values (4): 1,290,255,659   1,339,134,514      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 66,956,726

Confidence Interval Values (5)

State Lower Limit: 1,272,177,788 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,290,255,659 (Within Confidence Interval)
State Upper Limit: 1,406,091,240 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,577,932,628 (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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