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2009 Confidence Interval Detail
112/Hopkins
112-901/Sulphur Springs ISD

Category Summary

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

Stratum
Variance
A 120,566,700 0.9788 123,178,075 58 2,244 .013438481
A 125,971,520 0.9826 128,202,239 47 1,400 .010993371
A 123,729,590 1.0191 121,410,647 37 956 .008530497
A 129,281,560 0.9523 135,757,177 23 548 .014243673
D3 193,024,570 0.9186 210,129,077 38 5,444 .061863828
F1 41,189,550 0.9086 45,332,985 8 322 .024680765
F1 39,345,550 0.9167 42,920,857 7 116 .015657137
F1 44,505,070 0.8851 50,282,533 7 48 .012627021
F1 43,338,070 0.8889 48,754,719 5 13 .021691749
L1 30,117,040 1.0063 29,928,491 7 344 .001389211
L1 25,386,370 1.0222 24,835,032 6 50 .002853899
L1 31,497,960 0.8835 35,651,341 5 18 .058724632
L1 30,679,200 0.9456 32,444,162 3 4 .002237812
Random Totals: 978,632,750   1,028,827,335 251 11,507  
Catg D1 Exception Values: 14,674,450   12,489,985      
Total Test Values (4): 993,307,200   1,041,317,320      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,065,866

Confidence Interval Values (5)

State Lower Limit: 989,251,454 (State Test Value minus Margin of Error Percent)
Local Test Value: 993,307,200 (Within Confidence Interval)
State Upper Limit: 1,093,383,186 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,112,396,575 (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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