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2009 Confidence Interval Detail
015/Bexar
046-902/Comal ISD

Category Summary

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

Stratum
Variance
A 396,819,210 1.0247 387,254,035 52 2,113 .007798327
A 359,701,059 1.0267 350,346,799 52 1,542 .009058583
A 312,556,495 0.9768 319,980,032 52 1,115 .006738628
A 350,930,560 1.0356 338,866,898 38 857 .016062225
Random Totals: 1,420,007,324   1,396,447,764 194 5,627  
Catg D1 Exception Values: 916,530   1,052,101      
Total Test Values (4): 1,420,923,854   1,397,499,865      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 69,874,993

Confidence Interval Values (5)

State Lower Limit: 1,327,624,872 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,420,923,854 (Within Confidence Interval)
State Upper Limit: 1,467,374,858 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,620,850,964 (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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