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2006 Confidence Interval Detail
200/Runnels
200-901/Ballinger ISD

Category Summary

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

Stratum
Variance
A 18,517,839 1.0664 17,364,815 20 793 .045943914
A 18,495,595 0.9906 18,671,103 16 438 .008929944
A 18,514,867 0.9783 18,925,551 17 263 .025272322
A 18,415,180 0.9468 19,449,916 15 145 .021435562
D3 19,632,060 1.0922 17,974,785 21 2,981 .187623741
F1 3,756,668 1.0353 3,628,579 11 144 .008166641
F1 3,775,719 0.8769 4,305,758 9 54 .072177331
F1 4,136,979 0.9920 4,170,342 7 17 .002589220
F1 2,945,582 0.9478 3,107,810 2 3 .002070444
L1 2,412,401 1.0095 2,389,699 7 128 .001374726
L1 2,422,783 0.9716 2,493,601 8 35 .001107366
L1 2,810,839 0.9927 2,831,509 6 11 .000657147
Random Totals: 115,836,512   115,313,468 139 5,012  
Catg J Exception Values: 11,361,935   11,515,756      
Catg D1 Exception Values: 17,204,300   21,009,768      
Catg L1 Exception Values: 1,836,380   1,791,060      
Total Test Values (4): 146,239,127   149,630,052      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 7,481,503

Confidence Interval Values (5)

State Lower Limit: 142,148,549 (State Test Value minus Margin of Error Percent)
Local Test Value: 146,239,127 (Within Confidence Interval)
State Upper Limit: 157,111,555 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 174,440,412 (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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