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2006 Confidence Interval Detail
248/Winkler
248-902/Wink-Loving ISD

Category Summary

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

Stratum
Variance
A 1,946,821 0.8890 2,189,900 8 153 .004696300
A 1,899,802 0.9348 2,032,309 12 79 .002764971
A 1,953,400 0.9955 1,962,230 6 57 .000449671
A 1,886,369 0.9567 1,971,746 9 34 .001443192
G1 246,023,769 1.0077 244,143,861 7 211 .012584266
G1 248,640,690 0.9026 275,471,626 6 48 .118966364
G1 277,642,940 1.0416 266,554,282 4 12 .000711427
Random Totals: 779,993,791   794,325,954 52 594  
Catg J Exception Values: 22,635,370   23,020,212      
Catg D1 Exception Values: 1,492,010   4,706,582      
Catg G1 Exception Values: 203,929,620   192,748,512      
Total Test Values (4): 1,008,050,791   1,014,801,260      

Margin of Error

Margin of Error Percent: 7.4860558
Margin of Error Value: 75,968,589

Confidence Interval Values (5)

State Lower Limit: 938,832,671 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,008,050,791 (Within Confidence Interval)
State Upper Limit: 1,090,769,849 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,087,725,094 (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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