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2009 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 500,894,918 1.0003 500,744,695 28 7,642 .037311704
A 367,518,998 1.0231 359,220,993 32 4,034 .049607900
A 223,412,927 1.0259 217,772,616 29 1,968 .028581728
A 321,577,072 1.0158 316,575,184 30 1,894 .014456861
B 46,888,750 1.0366 45,233,214 7 96 .000412343
B 37,081,323 0.9557 38,800,171 4 7 .002823020
B 56,002,119 0.9538 58,714,740 4 7 .001045620
B 72,152,038 1.0101 71,430,589 2 5 .000706875
F1 99,803,418 0.9397 106,207,745 7 471 .006522849
F1 109,359,944 1.0029 109,043,717 7 122 .002247069
F1 97,153,410 0.9412 103,222,918 6 38 .000998230
F1 76,476,683 1.0180 75,124,443 4 9 .001799333
L1 90,542,224 0.9256 97,820,035 7 475 .003436122
L1 124,956,185 0.9145 136,638,803 6 43 .010179285
L1 44,966,085 0.9310 48,298,695 4 5 .008579877
L1 170,648,850 1.0003 170,597,671 2 4 .000071460
Random Totals: 2,439,434,944   2,455,446,229 179 16,820  
Catg D1 Exception Values: 72,326   70,726      
Total Test Values (4): 2,439,507,270   2,455,516,955      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 122,775,848

Confidence Interval Values (5)

State Lower Limit: 2,332,741,107 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,439,507,270 (Within Confidence Interval)
State Upper Limit: 2,578,292,803 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,899,473,742 (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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