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2008 Confidence Interval Detail
018/Bosque
018-907/Kopperl ISD

Category Summary

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

Stratum
Variance
A 10,253,200 1.0170 10,081,809 9 287 .018997497
A 10,410,990 0.9427 11,043,800 8 156 .008348761
A 10,132,050 0.9409 10,768,466 7 102 .007307166
A 11,398,700 1.0747 10,606,402 7 73 .016869492
D3 38,503,520 0.9740 39,531,335 17 984 .023818263
Random Totals: 80,698,460   82,031,812 48 1,602  
Catg J Exception Values: 4,510,330   4,545,021      
Catg D1 Exception Values: 4,177,100   3,910,081      
Total Test Values (4): 89,385,890   90,486,914      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 4,524,346

Confidence Interval Values (5)

State Lower Limit: 85,962,568 (State Test Value minus Margin of Error Percent)
Local Test Value: 89,385,890 (Within Confidence Interval)
State Upper Limit: 95,011,260 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 97,852,094 (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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