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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 0.9959 211,374,835 38 3,190 .049470766
A 163,655,247 1.1094 147,516,898 42 1,868 .050493120
A 182,068,719 1.0806 168,488,542 49 1,636 .024739556
A 143,625,581 1.1407 125,910,039 21 913 .022568323
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 1.0337 36,871,647 8 31 .011560864
F1 51,139,177 0.9489 53,893,115 5 12 .021258062
L1 38,443,177 1.0122 37,979,823 9 111 .002909796
L1 36,434,931 0.9464 38,498,448 6 19 .009842477
L1 31,060,738 0.9716 31,968,648 2 3 .028242357
Random Totals: 992,426,120   945,914,188 199 8,162  
Catg D1 Exception Values: 46,871   51,316      
Catg L1 Exception Values: 243,860,370   221,086,431      
Total Test Values (4): 1,236,333,361   1,167,051,935      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 58,352,597

Confidence Interval Values (5)

State Lower Limit: 1,108,699,338 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,225,404,532 (State Test Value plus Margin of Error Percent)
Local Test Value: 1,236,333,361 (Outside Confidence Interval)
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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