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2011 Confidence Interval Detail
249/Wise
061-911/Northwest ISD

Category Summary

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

Stratum
Variance
A 76,239,220 1.0142 75,171,781 18 920 .043763433
A 85,360,900 0.9900 86,223,131 47 604 .010452442
A 79,613,620 1.0416 76,433,967 11 369 .017426917
A 78,025,900 1.0076 77,437,376 10 242 .024237340
G1 179,003,677 1.0280 174,128,090 17 378 .009822585
G1 179,198,553 0.9766 183,492,272 13 176 .012451888
G1 179,227,419 1.0184 175,989,217 9 104 .007913298
G1 176,821,159 1.0074 175,522,294 10 63 .003026309
Random Totals: 1,033,490,448   1,024,398,128 135 2,856  
Catg J Exception Values: 11,848,847   14,521,516      
Catg D1 Exception Values: 1,947,650   2,080,604      
Total Test Values (4): 1,047,286,945   1,041,000,248      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,050,012

Confidence Interval Values (5)

State Lower Limit: 988,950,236 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,047,286,945 (Within Confidence Interval)
State Upper Limit: 1,093,050,260 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,299,100,419 (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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