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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 0.8018 6,511,630 15 303 .074604514
A 5,247,921 0.8206 6,395,224 14 165 .039866224
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 0.9764 22,391,950 26 10,707 .019534183
F1 5,563,349 0.7874 7,065,467 10 83 .023878654
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 0.9099 6,348,401 3 6 .011999217
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   88,312,213 113 11,472  
Catg J Exception Values: 52,123,600   53,441,225      
Catg D1 Exception Values: 18,494,460   21,949,403      
Catg F1 Exception Values: 6,801,580   7,059,550      
Total Test Values (4): 160,578,108   170,762,391      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 8,538,120

Confidence Interval Values (5)

Local Test Value: 160,578,108 (Outside Confidence Interval)
State Lower Limit: 162,224,271 (State Test Value minus Margin of Error Percent)
State Upper Limit: 179,300,511 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 296,956,076 (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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