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2006 Confidence Interval Detail
221/Taylor
221-901/Abilene ISD

Category Summary

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

Stratum
Variance
A 447,049,029 0.9810 455,707,471 17 10,965 .005616606
A 447,035,032 0.9747 458,638,588 13 5,824 .010480505
A 447,043,625 0.9643 463,593,928 23 4,118 .001400991
A 446,937,247 0.9597 465,705,165 22 2,268 .003973564
B 53,930,751 0.9820 54,919,298 37 539 .010338109
B 54,559,181 0.9973 54,706,890 5 24 .004495946
B 53,591,148 1.0132 52,892,961 4 10 .003925907
F1 190,704,338 0.9425 202,338,820 7 1,228 .019648493
F1 190,991,107 0.9879 193,330,405 7 280 .002437220
F1 191,778,383 1.0106 189,766,854 7 91 .004199943
F1 188,111,926 0.9953 189,000,227 5 25 .001360101
L1 131,938,901 1.0121 130,361,527 7 1,415 .000364595
L1 131,917,593 1.0069 131,013,599 8 271 .000819812
L1 133,846,305 0.9958 134,410,830 6 85 .000426628
L1 129,363,198 0.9956 129,934,912 7 23 .000070859
Random Totals: 3,238,797,764   3,306,321,475 175 27,166  
Catg D1 Exception Values: 1,742,065   1,590,429      
Catg B Exception Values: 36,719,871   37,026,255      
Total Test Values (4): 3,277,259,700   3,344,938,159      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 167,246,908

Confidence Interval Values (5)

State Lower Limit: 3,177,691,251 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,277,259,700 (Within Confidence Interval)
State Upper Limit: 3,512,185,067 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,275,930,682 (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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