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2010 Confidence Interval Detail
230/Upshur
230-902/Gilmer ISD

Category Summary

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

Stratum
Variance
A 78,035,419 0.9618 81,134,767 23 1,396 .014659692
A 74,983,592 1.0207 73,462,910 10 805 .040384418
A 78,368,210 1.0561 74,205,293 20 595 .014715055
A 88,440,740 0.9574 92,375,956 11 414 .008608957
D3 255,614,027 0.9833 259,955,280 28 7,061 .029329971
F1 17,339,220 0.9622 18,020,391 12 210 .044389154
F1 17,913,550 0.9266 19,332,560 10 84 .022994474
F1 20,630,090 1.0761 19,171,164 8 37 .005412324
F1 16,026,810 1.0247 15,640,490 6 7 .003699940
G1 44,921,118 0.9917 45,297,084 12 163 .005013972
G1 44,883,009 0.9722 46,166,436 10 76 .005929180
G1 44,788,554 1.0708 41,827,189 9 43 .005444977
G1 44,475,912 0.9843 45,185,322 9 22 .000987932
Random Totals: 826,420,251   831,774,842 168 10,913  
Catg J Exception Values: 11,176,153   10,932,810      
Catg D1 Exception Values: 10,189,320   9,779,929      
Total Test Values (4): 847,785,724   852,487,581      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 42,624,379

Confidence Interval Values (5)

State Lower Limit: 809,863,202 (State Test Value minus Margin of Error Percent)
Local Test Value: 847,785,724 (Within Confidence Interval)
State Upper Limit: 895,111,960 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 866,572,622 (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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