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2006 Confidence Interval Detail
003/Angelina
003-903/Lufkin ISD

Category Summary

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

Stratum
Variance
A 229,728,502 0.9577 239,875,224 65 5,047 .026206909
A 229,416,345 0.9428 243,335,113 57 2,787 .019316223
A 229,547,358 0.9386 244,563,561 56 1,854 .017095550
A 229,476,688 0.9435 243,218,535 57 971 .022946728
F1 80,642,616 0.9137 88,259,402 9 568 .168970987
F1 80,576,188 0.9807 82,161,913 7 151 .002011286
F1 82,734,312 0.8921 92,741,074 6 50 .208889463
F1 77,775,849 0.7145 108,853,533 4 9 .053657989
L1 56,628,541 0.9874 57,351,166 7 617 .000450010
L1 57,192,616 0.9901 57,764,484 8 112 .000834552
L1 58,400,411 0.9905 58,960,536 6 26 .000713974
L1 53,413,589 1.0350 51,607,332 3 4 .006252872
Random Totals: 1,465,533,015   1,568,691,873 285 12,196  
Catg J Exception Values: 79,870,960   78,751,055      
Catg D1 Exception Values: 11,529,496   10,899,313      
Total Test Values (4): 1,556,933,471   1,658,342,241      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 82,917,112

Confidence Interval Values (5)

Local Test Value: 1,556,933,471 (Outside Confidence Interval)
State Lower Limit: 1,575,425,129 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,741,259,353 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,828,879,065 (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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