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2011 Confidence Interval Detail
026/Burleson
026-902/Somerville ISD

Category Summary

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

Stratum
Variance
A 15,523,214 0.8087 19,195,269 18 762 .107810558
A 14,863,652 0.9075 16,378,680 18 361 .052468599
A 15,192,676 0.9676 15,701,401 18 246 .042401171
A 15,252,541 0.9961 15,312,259 17 146 .087858577
C 2,603,223 0.8493 3,065,140 15 1,249 .261690696
C 2,840,443 0.8419 3,373,848 16 982 .222153921
C 2,771,936 1.1064 2,505,365 15 665 .222015682
C 3,169,246 0.9562 3,314,417 15 252 .227979118
D3 47,902,905 1.0052 47,655,098 20 2,182 .045245092
F1 3,109,245 0.8795 3,535,242 11 61 .076575309
F1 3,038,688 0.8643 3,515,779 10 21 .166000713
F1 3,357,141 0.9818 3,419,374 7 12 .049196810
F1 3,390,730 0.8613 3,936,758 3 6 .014948915
G1 4,284,730 0.9789 4,377,087 8 31 .015693951
G1 4,337,300 1.0296 4,212,607 5 10 .033101119
G1 5,241,090 1.0125 5,176,385 3 4 .004911481
Random Totals: 146,878,760   154,674,709 199 6,990  
Catg J Exception Values: 1,809,970   1,944,020      
Catg D1 Exception Values: 4,309,028   2,969,690      
Catg G1 Exception Values: 2,327,180   2,223,277      
Total Test Values (4): 155,324,938   161,811,696      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 8,090,585

Confidence Interval Values (5)

State Lower Limit: 153,721,111 (State Test Value minus Margin of Error Percent)
Local Test Value: 155,324,938 (Within Confidence Interval)
State Upper Limit: 169,902,281 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 198,796,672 (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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