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2008 Confidence Interval Detail
120/Jackson
120-901/Edna ISD

Category Summary

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

Stratum
Variance
A 27,115,776 0.9829 27,587,523 11 739 .083062086
A 32,370,672 1.0312 31,391,265 24 512 .046972826
A 39,051,540 0.9870 39,565,897 17 427 .030364345
A 48,807,982 0.9617 50,751,775 10 299 .008235247
D3 64,991,886 0.8681 74,866,819 23 3,849 .511041944
F1 9,235,488 1.0425 8,858,981 13 146 .003668329
F1 10,616,250 1.0353 10,254,274 8 59 .006789945
F1 8,030,720 0.9896 8,115,117 6 17 .006304357
G1 35,547,336 1.0968 32,410,044 6 40 .078102621
G1 38,171,892 0.9085 42,016,392 5 13 .032516222
G1 33,587,102 1.0079 33,323,844 4 7 .000311479
G1 32,886,458 1.0003 32,876,595 2 3 .000052235
Random Totals: 380,413,102   392,018,526 129 6,111  
Catg J Exception Values: 15,853,834   15,689,909      
Catg D1 Exception Values: 28,335,030   26,661,337      
Catg F1 Exception Values: 10,414,697   10,469,581      
Total Test Values (4): 435,016,663   444,839,353      

Margin of Error

Margin of Error Percent: 5.5396805
Margin of Error Value: 24,642,679

Confidence Interval Values (5)

State Lower Limit: 420,196,674 (State Test Value minus Margin of Error Percent)
Local Test Value: 435,016,663 (Within Confidence Interval)
State Upper Limit: 469,482,032 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 444,206,543 (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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