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2010 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 264,729,532 1.0393 254,719,072 57 5,009 .023181270
A 262,380,383 1.0063 260,737,735 82 2,809 .015042079
A 254,141,154 0.9851 257,985,132 83 1,805 .017073309
A 296,693,576 1.0011 296,367,572 57 1,066 .010316092
F1 103,801,503 0.7583 136,887,120 12 533 .085394789
F1 116,665,530 1.0336 112,872,997 10 150 .069902129
F1 113,835,376 0.9367 121,528,105 8 51 .033501410
F1 101,780,946 1.0138 100,395,488 5 9 .039613026
L1 59,973,541 0.9259 64,773,238 10 558 .040163185
L1 63,686,652 0.9855 64,623,696 9 127 .018883926
L1 60,565,639 0.9819 61,682,085 8 31 .002582988
L1 51,734,059 0.9971 51,884,524 3 4 .006699891
Random Totals: 1,749,987,891   1,784,456,764 344 12,152  
Catg J Exception Values: 83,703,300   84,756,550      
Catg D1 Exception Values: 10,602,020   10,495,631      
Total Test Values (4): 1,844,293,211   1,879,708,945      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 93,985,447

Confidence Interval Values (5)

State Lower Limit: 1,785,723,498 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,844,293,211 (Within Confidence Interval)
State Upper Limit: 1,973,694,392 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,109,500,335 (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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