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2008 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 1,192,479,089 0.9744 1,223,808,589 14 15,300 .005576471
A 1,184,215,991 0.9876 1,199,084,641 23 12,139 .003414423
A 1,186,930,764 1.0015 1,185,153,034 23 10,270 .006881283
A 1,086,817,194 1.0026 1,083,998,797 27 6,754 .002724192
B 149,213,652 0.9719 153,527,783 6 69 .024092452
B 151,714,363 0.8799 172,422,279 6 36 .031812912
B 190,763,411 0.9288 205,386,963 6 35 .005380243
B 173,548,915 0.9388 184,862,500 5 20 .003853099
C 82,700,026 0.9229 89,608,870 17 5,447 .056622815
C 79,414,705 0.9495 83,638,447 11 1,582 .069570594
C 85,275,650 1.0134 84,148,066 8 501 .002597077
C 101,116,864 0.8542 118,376,099 7 141 .146623462
D3 257,321,677 0.8343 308,428,236 12 811 .099597332
F1 825,424,680 0.9028 914,294,063 16 1,484 .046784157
F1 848,081,590 0.9012 941,058,134 10 334 .011905652
F1 970,330,173 0.8790 1,103,902,358 9 128 .056207500
F1 1,016,981,787 0.9824 1,035,201,330 6 38 .000364889
L1 499,486,990 0.9983 500,337,564 9 1,923 .004033646
L1 524,296,940 0.9976 525,558,280 9 220 .002850487
L1 566,415,065 0.9867 574,049,929 7 65 .001175361
L1 739,208,984 0.9594 770,490,915 5 19 .009443272
Random Totals: 11,911,738,510   12,457,336,877 236 57,316  
Catg D1 Exception Values: 549,122   560,128      
Total Test Values (4): 11,912,287,632   12,457,897,005      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 622,894,850

Confidence Interval Values (5)

State Lower Limit: 11,835,002,155 (State Test Value minus Margin of Error Percent)
Local Test Value: 11,912,287,632 (Within Confidence Interval)
State Upper Limit: 13,080,791,855 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,032,295,928 (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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