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2006 Confidence Interval Detail
222/Terrell
222-901/Terrell County ISD

Category Summary

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

Stratum
Variance
D3 8,886,867 0.9965 8,918,080 14 5,532 .004663215
G1 166,275,150 1.0327 161,010,119 7 220 .001385842
G1 166,158,470 0.9858 168,551,907 6 43 .024877018
G1 169,934,480 1.0692 158,936,102 5 21 .002202343
G1 159,055,330 1.0580 150,335,851 4 9 .005475069
Random Totals: 670,310,297   647,752,059 36 5,825  
Catg J Exception Values: 19,596,687   19,110,412      
Catg D1 Exception Values: 13,618,764   20,427,590      
Total Test Values (4): 703,525,748   687,290,061      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 34,364,503

Confidence Interval Values (5)

State Lower Limit: 652,925,558 (State Test Value minus Margin of Error Percent)
Local Test Value: 703,525,748 (Within Confidence Interval)
State Upper Limit: 721,654,564 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 786,854,684 (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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