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2010 Confidence Interval Detail
146/Liberty
146-907/Tarkington ISD

Category Summary

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

Stratum
Variance
A 50,222,770 1.0117 49,641,959 16 1,060 .022009504
A 50,995,390 1.0062 50,681,167 15 574 .005234785
A 52,064,420 0.9739 53,459,719 15 417 .007045249
A 60,708,640 1.0049 60,412,618 17 320 .004003168
D3 82,057,984 0.9745 84,205,217 20 3,616 .028549594
Random Totals: 296,049,204   298,400,680 83 5,987  
Catg J Exception Values: 12,935,517   13,905,592      
Catg D1 Exception Values: 18,635,577   16,605,637      
Total Test Values (4): 327,620,298   328,911,909      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,445,595

Confidence Interval Values (5)

State Lower Limit: 312,466,314 (State Test Value minus Margin of Error Percent)
Local Test Value: 327,620,298 (Within Confidence Interval)
State Upper Limit: 345,357,504 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 393,733,718 (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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