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2010 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 14,520,030 0.8128 17,864,210 15 1,085 .232246148
A 17,034,880 0.7556 22,544,839 16 459 .076504320
A 17,586,830 0.9121 19,281,691 17 293 .107068430
A 15,596,780 1.0498 14,856,906 17 151 .066776939
D3 43,822,190 0.9868 44,408,381 20 2,373 .170808993
F1 2,553,740 0.6092 4,191,957 9 56 .396903084
F1 1,982,110 1.0010 1,980,130 7 16 .068270589
F1 2,961,260 0.8698 3,404,530 5 13 .129198599
G1 7,390,920 0.7765 9,518,249 7 29 .095715908
G1 7,013,660 1.0769 6,512,824 5 10 .006066604
G1 7,150,220 1.0362 6,900,425 3 4 .001755934
Random Totals: 137,612,620   151,464,142 121 4,489  
Catg J Exception Values: 10,128,190   10,317,177      
Catg D1 Exception Values: 4,406,740   3,030,701      
Catg F1 Exception Values: 2,160,100   3,766,858      
Catg G1 Exception Values: 6,757,400   6,612,657      
Total Test Values (4): 161,065,050   175,191,535      

Margin of Error

Margin of Error Percent: 6.0569833
Margin of Error Value: 10,611,322

Confidence Interval Values (5)

Local Test Value: 161,065,050 (Outside Confidence Interval)
State Lower Limit: 164,580,213 (State Test Value minus Margin of Error Percent)
State Upper Limit: 185,802,857 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 193,967,511 (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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