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2007 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 5,221,025 0.8347 6,254,972 15 303 .055904914
A 5,247,921 0.8686 6,041,816 14 165 .042343810
A 5,193,481 0.9427 5,509,156 14 107 .035749289
A 5,198,985 1.0789 4,818,783 12 64 .044045351
D3 21,863,500 0.9861 22,171,686 25 10,707 .017134000
F1 5,563,349 0.8605 6,465,252 10 83 .011192438
F1 5,628,938 1.0056 5,597,591 7 13 .003609377
F1 6,573,911 0.9059 7,256,773 3 5 .026204335
G1 6,116,720 0.9940 6,153,642 4 12 .000630459
G1 5,776,410 0.9727 5,938,532 3 6 .000068083
G1 5,127,770 1.0212 5,021,318 3 4 .002048939
G1 5,646,458 1.0771 5,242,278 2 3 .001994727
Random Totals: 83,158,468   86,471,799 112 11,472  
Catg J Exception Values: 52,123,600   53,338,213      
Catg D1 Exception Values: 18,494,460   20,908,702      
Catg F1 Exception Values: 6,801,580   7,059,550      
Total Test Values (4): 160,578,108   167,778,264      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,388,913

Confidence Interval Values (5)

State Lower Limit: 159,389,351 (State Test Value minus Margin of Error Percent)
Local Test Value: 160,578,108 (Within Confidence Interval)
State Upper Limit: 176,167,177 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 286,144,290 (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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