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2011 Confidence Interval Detail
101/Harris
101-905/Channelview ISD

Category Summary

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

Stratum
Variance
A 210,508,198 0.8631 243,897,808 20 3,190 .019942765
A 163,655,247 0.9306 175,859,926 15 1,868 .024533251
A 182,068,719 0.9395 193,793,208 12 1,636 .013615669
A 143,625,581 1.0892 131,863,369 12 913 .027405489
F1 48,186,266 1.0548 45,682,846 10 279 .008611924
F1 49,189,865 1.0306 47,729,347 9 100 .003028886
F1 38,114,221 1.0331 36,893,061 8 31 .011306313
F1 51,139,177 0.9489 53,893,115 5 12 .021258062
L1 38,443,177 1.0090 38,100,275 9 111 .002719414
L1 36,434,931 0.9464 38,498,448 6 19 .009847005
L1 31,060,738 0.9716 31,968,648 2 3 .028242357
Random Totals: 992,426,120   1,038,180,051 108 8,162  
Catg D1 Exception Values: 46,871   51,324      
Catg L1 Exception Values: 243,860,370   224,394,485      
Total Test Values (4): 1,236,333,361   1,262,625,860      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 63,131,293

Confidence Interval Values (5)

State Lower Limit: 1,199,494,567 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,236,333,361 (Within Confidence Interval)
State Upper Limit: 1,325,757,153 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,212,379,221 (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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