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2012 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 42,498,809 0.9605 44,246,548 9 152 .007773463
A 26,638,088 0.9645 27,618,546 10 78 .015698881
A 32,286,732 0.9977 32,361,163 9 82 .008589827
A 30,048,822 0.9479 31,700,414 9 58 .008211271
C 9,048,706 1.0165 8,901,826 10 140 .001094370
C 969,862 0.9095 1,066,368 7 14 .014120369
C 5,219,112 0.9981 5,229,047 8 57 .008454134
D3 25,505,113 0.9666 26,386,419 15 743 .009488723
G1 7,508,237 0.9946 7,549,002 4 8 .032727404
Random Totals: 179,723,481   185,059,333 81 1,332  
Catg D1 Exception Values: 15,207,582   17,197,633      
Catg G1 Exception Values: 53,482,986   54,362,546      
Total Test Values (4): 248,414,049   256,619,512      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 12,830,976

Confidence Interval Values (5)

State Lower Limit: 243,788,536 (State Test Value minus Margin of Error Percent)
Local Test Value: 248,414,049 (Within Confidence Interval)
State Upper Limit: 269,450,488 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 277,793,826 (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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