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2011 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 530,443,843 0.9812 540,607,259 68 10,565 .018434466
A 535,699,766 1.0095 530,658,510 74 5,870 .008641471
A 531,115,101 1.0050 528,472,737 52 4,204 .009744492
A 557,171,863 0.9848 565,771,591 44 2,582 .001306687
B 66,236,727 1.0454 63,360,175 12 510 .010392741
B 71,094,258 0.9729 73,074,579 10 31 .003484709
B 68,478,142 1.0033 68,252,907 8 12 .002305479
B 77,382,564 1.0289 75,209,023 5 7 .002079418
F1 221,771,095 0.9701 228,606,427 15 1,202 .016710852
F1 216,687,982 0.8755 247,501,978 10 280 .049462327
F1 226,395,793 0.9477 238,889,726 12 101 .026253281
F1 208,255,566 0.9426 220,937,371 9 28 .015608838
L1 154,333,504 1.0041 153,703,320 11 1,145 .000419040
L1 152,217,462 1.0016 151,974,303 13 198 .003195143
L1 139,653,208 1.0037 139,138,396 10 54 .001221503
L1 161,906,544 0.9842 164,505,735 6 14 .000621667
Random Totals: 3,918,843,418   3,990,664,037 359 26,803  
Catg D1 Exception Values: 1,483,206   1,563,717      
Total Test Values (4): 3,920,326,624   3,992,227,754      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 199,611,388

Confidence Interval Values (5)

State Lower Limit: 3,792,616,366 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,920,326,624 (Within Confidence Interval)
State Upper Limit: 4,191,839,142 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,797,430,953 (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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