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2009 Confidence Interval Detail
007/Atascosa
007-901/Charlotte ISD

Category Summary

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

Stratum
Variance
A 8,411,388 1.0822 7,772,489 7 227 .021788415
A 8,106,880 1.0097 8,028,999 7 123 .028841971
A 4,726,610 0.9392 5,032,592 6 49 .007018365
A 3,968,590 1.0163 3,904,939 6 25 .076162147
D3 22,824,610 0.8781 25,993,178 19 1,584 .124837238
G1 4,408,854 1.0907 4,042,224 5 13 .002040658
G1 4,310,290 0.9770 4,411,760 3 5 .012252999
Random Totals: 56,757,222   59,186,181 53 2,026  
Catg J Exception Values: 6,112,391   6,446,711      
Catg D1 Exception Values: 14,670,864   14,785,099      
Catg G1 Exception Values: 13,914,766   13,819,550      
Total Test Values (4): 91,455,243   94,237,541      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,711,877

Confidence Interval Values (5)

State Lower Limit: 89,525,664 (State Test Value minus Margin of Error Percent)
Local Test Value: 91,455,243 (Within Confidence Interval)
State Upper Limit: 98,949,418 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 91,695,561 (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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