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2007 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 9,123,280 0.9228 9,886,519 14 5,318 .026638796
G1 194,944,890 1.0126 192,519,149 7 228 .006791493
G1 200,456,620 1.0039 199,677,876 6 48 .057691460
G1 193,581,810 1.0018 193,233,989 5 22 .001852017
G1 190,394,360 1.0030 189,824,885 4 8 .006296046
Random Totals: 788,500,960   785,142,418 36 5,624  
Catg J Exception Values: 21,190,145   21,580,653      
Catg D1 Exception Values: 14,440,555   21,686,299      
Total Test Values (4): 824,131,660   828,409,370      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 41,420,469

Confidence Interval Values (5)

State Lower Limit: 786,988,901 (State Test Value minus Margin of Error Percent)
Local Test Value: 824,131,660 (Within Confidence Interval)
State Upper Limit: 869,829,839 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 923,407,125 (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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