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2007 Confidence Interval Detail
248/Winkler
248-901/Kermit ISD

Category Summary

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

Stratum
Variance
A 13,342,673 0.9401 14,192,823 8 937 .317630351
A 13,281,087 0.7838 16,944,485 11 545 .171941896
A 13,343,734 0.7462 17,882,249 8 333 .015993970
A 13,273,333 0.9167 14,479,473 12 172 .101636641
G1 118,999,839 1.0055 118,348,920 7 207 .017040137
G1 118,394,650 1.0056 117,735,332 6 48 .031613946
G1 135,922,980 1.0291 132,079,467 5 15 .156079489
Random Totals: 426,558,296   431,662,749 57 2,257  
Catg J Exception Values: 14,091,730   14,183,916      
Catg D1 Exception Values: 588,929   1,778,279      
Catg G1 Exception Values: 98,099,074   99,086,145      
Total Test Values (4): 539,338,029   546,711,089      

Margin of Error

Margin of Error Percent: 7.9881544
Margin of Error Value: 43,672,126

Confidence Interval Values (5)

State Lower Limit: 503,038,963 (State Test Value minus Margin of Error Percent)
Local Test Value: 539,338,029 (Within Confidence Interval)
State Upper Limit: 590,383,215 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 671,048,661 (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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