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2007 Confidence Interval Detail
084/Galveston
084-910/Clear Creek ISD

Category Summary

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

Stratum
Variance
A 2,416,812,710 0.9975 2,422,869,885 33 19,621 .003494821
A 2,417,354,268 1.0013 2,414,215,787 35 14,542 .001228501
A 2,415,620,728 0.9953 2,427,027,758 33 10,904 .005405112
A 2,415,920,493 1.0021 2,410,857,692 32 6,114 .003081222
B 165,449,186 0.9008 183,669,167 7 41 .002815502
B 158,341,203 0.9365 169,077,633 6 20 .001937746
B 164,734,456 0.9932 165,862,320 5 14 .026441507
B 150,715,819 0.9619 156,685,538 5 8 .000660047
F1 476,390,699 0.9798 486,212,185 11 797 .020569944
F1 476,567,013 0.9376 508,283,930 9 220 .009948525
F1 477,627,250 0.9342 511,268,733 9 76 .025675129
F1 471,332,126 1.0237 460,420,168 7 20 .024911182
L1 148,108,748 1.0091 146,773,113 7 1,734 .004551576
L1 148,392,404 0.9897 149,936,753 7 299 .004628638
L1 148,268,086 1.0250 144,651,791 7 71 .023689951
L1 146,812,343 1.0605 138,436,910 6 14 .007653160
Random Totals: 12,798,447,532   12,896,249,363 219 54,495  
Catg D1 Exception Values: 735,489   725,729      
Total Test Values (4): 12,799,183,021   12,896,975,092      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 644,848,755

Confidence Interval Values (5)

State Lower Limit: 12,252,126,337 (State Test Value minus Margin of Error Percent)
Local Test Value: 12,799,183,021 (Within Confidence Interval)
State Upper Limit: 13,541,823,847 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,831,443,953 (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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