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2009 Confidence Interval Detail
019/Bowie
019-914/Leary ISD

Category Summary

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

Stratum
Variance
A 3,701,136 0.9935 3,725,351 8 109 .061371826
A 3,524,630 0.8903 3,958,924 6 55 .002310638
A 4,512,275 0.9514 4,742,774 6 40 .004505601
A 4,355,270 1.0159 4,287,105 4 14 .006662647
D3 9,233,141 1.1623 7,943,854 22 244 .067103440
F1 2,121,997 0.9201 2,306,268 10 26 .002910946
Random Totals: 27,448,449   26,964,276 56 488  
Catg D1 Exception Values: 483,488   386,027      
Total Test Values (4): 27,931,937   27,350,303      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,367,515

Confidence Interval Values (5)

State Lower Limit: 25,982,788 (State Test Value minus Margin of Error Percent)
Local Test Value: 27,931,937 (Within Confidence Interval)
State Upper Limit: 28,717,818 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 29,111,490 (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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