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2009 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 29,787,000 0.8064 36,938,244 14 1,158 .036718683
A 30,052,170 0.9551 31,464,946 9 492 .041023231
A 30,712,040 0.9383 32,731,578 8 335 .031588292
A 31,983,350 1.0075 31,745,261 8 210 .025023252
D3 24,370,890 0.9400 25,926,479 10 2,016 .005941162
G1 63,840,179 0.9805 65,109,820 5 22 .001305242
G1 72,172,274 1.0455 69,031,348 4 7 .011424796
G1 116,211,320 1.0103 115,026,547 3 4 .000136048
Random Totals: 399,129,223   407,974,223 61 4,244  
Catg D1 Exception Values: 53,798,170   60,531,310      
Catg G1 Exception Values: 89,560,048   84,441,022      
Total Test Values (4): 542,487,441   552,946,555      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 27,647,328

Confidence Interval Values (5)

State Lower Limit: 525,299,227 (State Test Value minus Margin of Error Percent)
Local Test Value: 542,487,441 (Within Confidence Interval)
State Upper Limit: 580,593,883 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 632,206,449 (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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