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2010 Confidence Interval Detail
230/Upshur
092-901/Gladewater ISD

Category Summary

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

Stratum
Variance
A 22,472,210 0.9322 24,106,640 10 401 .022122032
A 21,633,420 0.9716 22,265,768 10 217 .005428780
A 21,528,830 0.9131 23,577,735 9 165 .013852328
A 23,773,720 0.9532 24,940,957 9 106 .020871537
D3 33,145,908 0.9317 35,575,730 20 995 .035096885
G1 10,775,117 1.0070 10,700,215 10 30 .003708743
G1 10,265,323 0.9778 10,498,387 6 11 .002413246
G1 10,901,265 0.9885 11,028,088 5 8 .000293043
G1 8,577,046 0.9872 8,688,256 2 3 .001372862
Random Totals: 163,072,839   171,381,776 81 1,936  
Catg J Exception Values: 3,448,743   3,399,257      
Catg D1 Exception Values: 1,066,428   957,208      
Total Test Values (4): 167,588,010   175,738,241      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,786,912

Confidence Interval Values (5)

State Lower Limit: 166,951,329 (State Test Value minus Margin of Error Percent)
Local Test Value: 167,588,010 (Within Confidence Interval)
State Upper Limit: 184,525,153 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 155,478,879 (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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