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2008 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 1,356,205 0.8342 1,625,755 8 111 .096198872
A 1,592,260 0.7148 2,227,560 6 69 .034501617
A 2,779,250 0.9088 3,058,154 7 81 .095202173
A 4,218,150 0.9033 4,669,711 6 69 .008844355
G1 125,090,720 0.9996 125,140,776 11 106 .000020658
G1 127,363,670 1.0001 127,350,935 9 30 .000027055
G1 138,089,970 0.8979 153,792,148 6 14 .073630332
Random Totals: 400,490,225   417,865,039 53 480  
Catg J Exception Values: 12,867,205   20,941,049      
Catg D1 Exception Values: 633,735   2,213,814      
Catg G1 Exception Values: 107,089,660   203,543,572      
Total Test Values (4): 521,080,825   644,563,474      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 32,228,174

Confidence Interval Values (5)

Local Test Value: 521,080,825 (Outside Confidence Interval)
State Lower Limit: 612,335,300 (State Test Value minus Margin of Error Percent)
State Upper Limit: 676,791,648 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 763,406,742 (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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