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2008 Confidence Interval Detail
055/Culberson
055-901/Culberson-Allamore ISD

Category Summary

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

Stratum
Variance
A 4,674,550 0.9349 5,000,053 11 280 .019949139
A 5,304,680 1.0004 5,302,559 10 162 .020389089
A 6,172,900 0.9558 6,458,359 11 123 .035346071
A 7,068,820 1.0597 6,670,586 10 83 .010795437
D3 14,338,140 1.0128 14,156,931 20 8,130 .030493778
F1 5,413,350 1.0157 5,329,674 8 77 .075297146
F1 5,565,560 1.0096 5,512,639 7 11 .006822634
F1 4,139,190 0.9611 4,306,721 3 3 .011837659
G1 8,356,271 1.0016 8,342,922 6 15 .003417742
G1 6,668,390 0.9108 7,321,465 3 6 .046145267
G1 7,998,090 0.9107 8,782,354 3 6 .004220274
G1 6,834,899 1.0189 6,708,116 2 3 .000025688
Random Totals: 82,534,840   83,892,379 94 8,899  
Catg J Exception Values: 44,462,138   46,572,681      
Catg D1 Exception Values: 16,741,500   16,883,034      
Catg F1 Exception Values: 4,639,840   4,922,890      
Total Test Values (4): 148,378,318   152,270,984      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,613,549

Confidence Interval Values (5)

State Lower Limit: 144,657,435 (State Test Value minus Margin of Error Percent)
Local Test Value: 148,378,318 (Within Confidence Interval)
State Upper Limit: 159,884,533 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 288,202,828 (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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