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2011 Confidence Interval Detail
101/Harris
101-910/Galena Park ISD

Category Summary

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

Stratum
Variance
A 398,057,491 0.9869 403,341,262 36 7,260 .063188685
A 314,332,814 1.0752 292,348,227 41 4,086 .077973841
A 322,022,146 1.0370 310,532,446 46 3,256 .043470037
A 315,596,737 1.0432 302,527,547 46 1,975 .019745990
B 42,619,771 0.9794 43,516,205 9 104 .022793011
B 51,495,127 0.9754 52,793,856 6 10 .010257633
F1 99,283,754 1.0785 92,057,259 10 465 .036064152
F1 100,974,365 0.9907 101,922,242 10 120 .021616335
F1 100,740,971 1.0455 96,356,739 8 42 .003747062
F1 99,114,016 1.0857 91,290,426 5 13 .002101188
L1 71,483,227 1.0769 66,378,705 10 545 .037814428
L1 72,023,249 0.9620 74,868,242 8 52 .002412732
L1 143,990,338 0.9675 148,827,223 7 19 .023801615
Random Totals: 2,131,734,006   2,076,760,379 242 17,947  
Catg D1 Exception Values: 58,426   58,677      
Catg B Exception Values: 86,028,822   91,313,838      
Total Test Values (4): 2,217,821,254   2,168,132,894      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 108,406,645

Confidence Interval Values (5)

State Lower Limit: 2,059,726,249 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,217,821,254 (Within Confidence Interval)
State Upper Limit: 2,276,539,539 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,708,773,600 (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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