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2007 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 1,137,198,685 0.9964 1,141,307,392 41 13,807 .004953286
A 1,137,478,938 0.9996 1,137,934,112 77 10,912 .004435332
A 1,137,054,018 1.0099 1,125,907,533 89 9,301 .007883432
A 1,136,914,651 1.0037 1,132,723,574 87 6,770 .003762655
B 156,435,774 0.9761 160,266,135 6 70 .002345791
B 160,555,226 0.8126 197,582,114 8 36 .044137515
B 151,543,270 0.8910 170,082,233 7 27 .014136945
B 149,937,575 0.9576 156,576,415 7 17 .016939752
C 76,696,162 1.0280 74,607,161 10 5,630 .020960050
C 76,756,608 1.0464 73,353,028 11 2,425 .014362677
C 76,885,481 1.0780 71,322,339 8 610 .018976625
C 76,370,532 0.9005 84,809,031 8 163 .022076666
F1 709,235,556 0.8645 820,399,718 25 1,363 .060355655
F1 929,943,588 0.8701 1,068,777,828 18 304 .036072948
F1 723,854,620 0.8647 837,116,480 17 101 .033022282
F1 687,083,092 0.8763 784,072,911 16 29 .010533643
L1 509,530,568 1.1571 440,351,368 7 2,183 .066562587
L1 513,205,287 0.9593 534,978,929 5 262 .012558981
L1 523,665,715 1.0043 521,423,594 7 66 .004265015
L1 502,650,872 0.9665 520,073,329 5 20 .005543524
Random Totals: 10,572,996,218   11,053,665,224 459 54,096  
Catg D1 Exception Values: 7,475,476   7,444,319      
Total Test Values (4): 10,580,471,694   11,061,109,543      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 553,055,477

Confidence Interval Values (5)

State Lower Limit: 10,508,054,066 (State Test Value minus Margin of Error Percent)
Local Test Value: 10,580,471,694 (Within Confidence Interval)
State Upper Limit: 11,614,165,020 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 12,226,722,033 (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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