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2008 Confidence Interval Detail
019/Bowie
019-913/Hubbard ISD

Category Summary

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

Stratum
Variance
A 1,094,405 0.8573 1,276,572 7 31 .024863520
A 1,279,197 0.9560 1,338,072 6 21 .011916161
A 1,448,989 0.9976 1,452,475 5 17 .003851900
A 1,596,157 0.9786 1,631,062 7 12 .014485915
D3 13,829,585 1.0522 13,143,495 29 358 .052345489
Random Totals: 19,248,333   18,841,676 54 439  
Catg D1 Exception Values: 1,142,832   971,722      
Total Test Values (4): 20,391,165   19,813,398      

Margin of Error

Margin of Error Percent: 5.5287185
Margin of Error Value: 1,095,427

Confidence Interval Values (5)

State Lower Limit: 18,717,971 (State Test Value minus Margin of Error Percent)
Local Test Value: 20,391,165 (Within Confidence Interval)
State Upper Limit: 20,908,825 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 16,929,344 (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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