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2011 Confidence Interval Detail
101/Harris
101-902/Aldine ISD

Category Summary

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

Stratum
Variance
A 1,242,777,425 1.0720 1,159,307,299 55 19,217 .032844747
A 963,601,496 1.0540 914,232,918 46 11,742 .063366215
A 884,827,210 1.0574 836,795,167 50 8,944 .031690625
A 819,118,752 1.0421 786,027,015 45 5,467 .043544985
B 146,130,690 1.0285 142,081,371 10 87 .023511935
B 117,235,362 0.9814 119,457,267 10 32 .007642498
B 163,056,551 0.9384 173,760,178 10 32 .008987574
B 132,851,671 1.0207 130,157,413 6 15 .008609101
C 79,279,135 1.0254 77,315,326 11 4,460 .034544886
C 79,829,882 1.0597 75,332,530 11 1,054 .008893376
C 77,828,211 0.9072 85,789,474 10 317 .017862233
C 83,674,693 0.9663 86,592,873 11 97 .006787696
F1 913,266,912 0.8837 1,033,458,088 10 1,617 .004601309
F1 942,472,631 0.9093 1,036,481,503 10 374 .052819719
F1 853,683,460 0.9232 924,700,455 9 117 .016682052
F1 908,837,807 0.8798 1,033,005,009 8 44 .012454496
L1 590,304,451 0.9403 627,783,102 10 1,632 .008770340
L1 599,327,686 0.9546 627,831,224 9 177 .002272175
L1 470,157,579 0.9193 511,429,978 9 46 .017360842
L1 550,652,820 1.0223 538,641,123 6 16 .011213294
Random Totals: 10,618,914,424   10,920,179,313 346 55,487  
Catg J Exception Values: 70,445,514   68,113,501      
Catg D1 Exception Values: 10,027,121   10,038,521      
Total Test Values (4): 10,699,387,059   10,998,331,335      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 549,916,567

Confidence Interval Values (5)

State Lower Limit: 10,448,414,768 (State Test Value minus Margin of Error Percent)
Local Test Value: 10,699,387,059 (Within Confidence Interval)
State Upper Limit: 11,548,247,902 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 12,829,727,694 (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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