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2009 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 1,344,052 0.9722 1,382,485 6 40 .008659670
A 1,365,208 0.9310 1,466,389 5 21 .012493038
A 1,474,000 0.9639 1,529,204 5 16 .018326617
A 1,992,974 0.9596 2,076,880 4 14 .049868894
D3 14,504,591 1.0285 14,102,665 20 462 .039231827
Random Totals: 20,680,825   20,557,623 40 553  
Catg D1 Exception Values: 1,147,055   879,410      
Total Test Values (4): 21,827,880   21,437,033      

Margin of Error

Margin of Error Percent: 6.1663711
Margin of Error Value: 1,321,887

Confidence Interval Values (5)

State Lower Limit: 20,115,146 (State Test Value minus Margin of Error Percent)
Local Test Value: 21,827,880 (Within Confidence Interval)
State Upper Limit: 22,758,920 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 18,133,261 (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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