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2010 Confidence Interval Detail
091/Grayson
091-917/Gunter ISD

Category Summary

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

Stratum
Variance
A 26,700,681 1.0367 25,755,456 10 272 .003998032
A 27,453,371 0.9853 27,862,956 11 143 .005988700
A 28,070,930 0.9883 28,403,248 12 101 .005065216
A 27,480,167 1.0350 26,550,886 10 66 .005554451
C 5,147,533 1.0728 4,798,222 9 155 .017321014
C 5,730,812 1.0298 5,564,976 9 91 .003819414
C 5,289,272 0.9966 5,307,317 8 54 .000187171
C 4,416,139 1.0972 4,024,917 8 27 .034842557
D3 46,114,544 1.1023 41,834,840 15 1,162 .038970278
F1 8,412,526 0.9471 8,882,405 9 44 .048759999
Random Totals: 184,815,975   178,985,223 101 2,115  
Catg J Exception Values: 10,964,620   12,878,795      
Catg D1 Exception Values: 4,875,645   3,755,465      
Catg F1 Exception Values: 4,057,423   4,242,394      
Total Test Values (4): 204,713,663   199,861,877      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 9,993,094

Confidence Interval Values (5)

State Lower Limit: 189,868,783 (State Test Value minus Margin of Error Percent)
Local Test Value: 204,713,663 (Within Confidence Interval)
State Upper Limit: 209,854,971 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 216,179,861 (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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