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2009 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 25,277,676 0.8892 28,427,436 8 91 .004644630
A 23,797,886 0.9829 24,211,910 8 71 .003426558
A 29,793,340 1.0325 28,855,535 8 75 .010109953
A 28,783,443 0.9897 29,082,998 8 57 .001534943
C 4,896,469 1.0646 4,599,351 9 76 .000068538
C 3,368,709 1.0659 3,160,436 8 46 .002111718
C 4,267,531 1.0608 4,022,936 9 52 .007033712
C 3,177,563 1.2386 2,565,447 6 26 .005115973
D3 23,644,600 1.0561 22,388,600 24 755 .059828332
G1 6,817,629 1.0904 6,252,411 4 12 .015812007
G1 8,953,429 1.0172 8,802,034 3 4 .011204756
Random Totals: 162,778,275   162,369,094 95 1,265  
Catg D1 Exception Values: 15,379,072   16,201,962      
Catg G1 Exception Values: 25,516,326   24,214,458      
Total Test Values (4): 203,673,673   202,785,514      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 10,139,276

Confidence Interval Values (5)

State Lower Limit: 192,646,238 (State Test Value minus Margin of Error Percent)
Local Test Value: 203,673,673 (Within Confidence Interval)
State Upper Limit: 212,924,790 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 227,962,080 (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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