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2008 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 317,667,160 1.0029 316,748,589 34 2,571 .003207344
G1 227,619,735 0.9937 229,062,831 5 293 .005304328
G1 228,048,320 1.0223 223,073,775 5 164 .001506240
G1 227,318,383 1.0316 220,355,160 5 106 .001725918
G1 226,583,678 1.0249 221,078,815 5 58 .003446552
Random Totals: 1,227,237,276   1,210,319,170 54 3,192  
Catg D1 Exception Values: 1,988,740   1,982,050      
Total Test Values (4): 1,229,226,016   1,212,301,220      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 60,615,061

Confidence Interval Values (5)

State Lower Limit: 1,151,686,159 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,229,226,016 (Within Confidence Interval)
State Upper Limit: 1,272,916,281 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,371,074,432 (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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