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2008 Confidence Interval Detail
178/Nueces
178-906/London ISD

Category Summary

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

Stratum
Variance
A 23,781,860 0.9856 24,129,322 7 88 .020036821
A 21,297,319 1.0120 21,044,782 7 65 .008137060
A 23,571,040 0.9409 25,051,589 7 62 .024539447
A 32,063,588 0.9282 34,543,835 8 66 .017275583
C 4,156,435 1.0270 4,047,162 6 68 .002910205
C 2,791,196 1.0110 2,760,827 6 41 .007625929
C 7,597,157 1.0908 6,964,757 6 99 .008174603
C 6,451,102 1.0442 6,178,033 6 58 .022599332
D3 18,608,124 0.8951 20,788,877 16 708 .260048011
G1 27,892,161 0.9942 28,054,879 5 17 .000164704
G1 25,752,430 0.9969 25,832,511 3 4 .000030181
Random Totals: 193,962,412   199,396,574 77 1,276  
Catg D1 Exception Values: 14,728,181   15,840,930      
Catg G1 Exception Values: 42,058,348   42,082,432      
Total Test Values (4): 250,748,941   257,319,936      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 12,865,997

Confidence Interval Values (5)

State Lower Limit: 244,453,939 (State Test Value minus Margin of Error Percent)
Local Test Value: 250,748,941 (Within Confidence Interval)
State Upper Limit: 270,185,933 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 270,422,323 (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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