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2008 Confidence Interval Detail
019/Bowie
019-912/Pleasant Grove ISD

Category Summary

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

Stratum
Variance
A 128,970,658 0.9189 140,353,312 23 1,245 .013931510
A 142,198,597 0.9907 143,533,458 35 911 .001930418
A 133,235,094 0.9937 134,079,797 22 585 .005273730
A 134,330,673 1.0444 128,619,947 8 301 .016188733
B 4,975,820 0.9468 5,255,408 6 36 .002724907
B 6,345,590 1.0382 6,112,107 7 39 .002454174
B 8,611,324 0.9739 8,842,103 5 32 .016107790
F1 30,069,973 0.9177 32,766,670 6 60 .013867984
F1 33,811,497 0.9583 35,282,789 6 21 .002022162
F1 31,026,466 0.8491 36,540,415 4 8 .005545255
Random Totals: 653,575,692   671,386,006 122 3,238  
Catg D1 Exception Values: 4,095,295   4,200,100      
Catg B Exception Values: 18,723,367   22,078,693      
Catg F1 Exception Values: 27,966,234   36,352,289      
Total Test Values (4): 704,360,588   734,017,088      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 36,700,854

Confidence Interval Values (5)

State Lower Limit: 697,316,234 (State Test Value minus Margin of Error Percent)
Local Test Value: 704,360,588 (Within Confidence Interval)
State Upper Limit: 770,717,942 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 750,061,774 (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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