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2007 Confidence Interval Detail
244/Wilbarger
244-903/Vernon ISD

Category Summary

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

Stratum
Variance
A 43,981,251 1.0003 43,968,061 38 1,768 .066416660
A 43,961,375 0.8116 54,166,307 25 830 .026600391
A 43,970,284 0.7966 55,197,444 21 534 .047046432
A 43,891,978 0.9346 46,963,383 17 326 .053467182
D3 22,997,400 0.9181 25,048,905 23 2,933 .040932558
F1 10,672,320 0.8794 12,135,911 8 264 .024601554
F1 10,786,317 1.0209 10,565,498 7 74 .009195997
F1 11,676,863 0.7439 15,696,818 6 22 .054994965
L1 7,197,520 0.9998 7,198,960 8 234 .000360416
L1 7,245,278 0.8951 8,094,378 7 51 .022709396
L1 7,938,087 0.9804 8,096,784 7 13 .000686427
Random Totals: 254,318,673   287,132,449 167 7,049  
Catg J Exception Values: 34,060,164   35,243,362      
Catg D1 Exception Values: 23,987,120   30,297,883      
Catg F1 Exception Values: 4,838,900   5,204,593      
Catg L1 Exception Values: 5,553,980   5,642,749      
Total Test Values (4): 322,758,837   363,521,036      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 18,176,052

Confidence Interval Values (5)

Local Test Value: 322,758,837 (Outside Confidence Interval)
State Lower Limit: 345,344,984 (State Test Value minus Margin of Error Percent)
State Upper Limit: 381,697,088 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 802,228,025 (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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