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2011 Confidence Interval Detail
050/Coryell
050-902/Gatesville ISD

Category Summary

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

Stratum
Variance
A 82,247,944 0.9245 88,964,785 10 1,712 .051914953
A 83,324,040 0.9374 88,888,457 10 1,073 .015228461
A 87,053,358 0.9416 92,452,589 10 758 .015293569
A 80,080,452 0.9302 86,089,499 10 416 .004116161
D3 119,120,684 1.0123 117,673,302 16 5,172 .044006023
F1 20,828,835 0.9498 21,929,706 9 177 .213060688
F1 20,992,000 0.9161 22,914,529 9 61 .015317706
F1 22,474,250 0.9252 24,291,234 7 20 .101728822
F1 17,067,780 1.0555 16,170,327 3 4 .010235762
L1 8,511,030 1.0400 8,183,683 10 179 .034107858
L1 10,320,940 1.0253 10,066,264 8 44 .006747849
L1 7,498,780 1.0584 7,085,015 5 8 .023490365
Random Totals: 559,520,093   584,709,390 107 9,624  
Catg D1 Exception Values: 20,759,782   22,723,183      
Catg L1 Exception Values: 7,528,830   7,790,026      
Total Test Values (4): 587,808,705   615,222,599      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 30,761,130

Confidence Interval Values (5)

State Lower Limit: 584,461,469 (State Test Value minus Margin of Error Percent)
Local Test Value: 587,808,705 (Within Confidence Interval)
State Upper Limit: 645,983,729 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 573,204,863 (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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