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2007 Confidence Interval Detail
223/Terry
223-901/Brownfield CISD

Category Summary

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

Stratum
Variance
A 29,738,023 0.8842 33,632,688 8 1,240 .030735456
A 29,751,589 0.9528 31,225,429 13 520 .017453097
A 29,710,811 0.9543 31,133,617 7 343 .013155700
A 29,697,625 0.9232 32,168,138 9 205 .019655775
D3 20,594,360 0.8861 23,241,575 14 2,129 .136814102
G1 57,409,716 1.0101 56,835,676 12 24 .008270806
G1 61,039,751 0.9911 61,587,883 5 7 .003734864
L1 8,377,848 0.9538 8,783,653 9 107 .012866498
L1 8,441,989 0.9777 8,634,539 5 24 .004207801
L1 8,567,145 0.9219 9,292,922 3 6 .013711872
Random Totals: 283,328,857   296,536,120 85 4,605  
Catg D1 Exception Values: 50,601,340   56,000,034      
Catg G1 Exception Values: 215,187,458   212,108,028      
Catg L1 Exception Values: 6,974,350   6,978,918      
Total Test Values (4): 556,092,005   571,623,100      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 28,581,155

Confidence Interval Values (5)

State Lower Limit: 543,041,945 (State Test Value minus Margin of Error Percent)
Local Test Value: 556,092,005 (Within Confidence Interval)
State Upper Limit: 600,204,255 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 601,185,716 (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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