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2008 Confidence Interval Detail
109/Hill
109-904/Hillsboro ISD

Category Summary

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

Stratum
Variance
A 39,569,547 0.9162 43,188,766 25 1,122 .067762282
A 44,168,660 1.0287 42,936,386 33 630 .039626041
A 44,291,990 1.0025 44,181,536 28 410 .009766128
A 44,923,210 0.9909 45,335,765 27 247 .010845833
D3 57,129,691 0.8757 65,238,884 23 2,430 .271617369
F1 32,227,100 0.9566 33,689,212 8 203 .023315223
F1 28,811,080 0.9935 28,999,577 7 35 .001650907
F1 43,225,170 0.9819 44,021,968 7 16 .002743147
F1 18,248,060 0.9886 18,458,487 2 2 .002745070
L1 14,152,300 1.0338 13,689,592 8 194 .002668253
L1 16,713,490 1.0016 16,686,791 6 57 .001043895
L1 16,664,420 1.0097 16,504,328 5 19 .002862406
L1 18,180,990 0.9908 18,349,808 2 4 .004060199
Random Totals: 418,305,708   431,281,100 181 5,369  
Catg J Exception Values: 42,353,836   48,020,544      
Catg D1 Exception Values: 7,981,441   8,023,279      
Total Test Values (4): 468,640,985   487,324,923      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,366,246

Confidence Interval Values (5)

State Lower Limit: 462,958,677 (State Test Value minus Margin of Error Percent)
Local Test Value: 468,640,985 (Within Confidence Interval)
State Upper Limit: 511,691,169 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 488,039,401 (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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