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2008 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 481,271,736 0.9515 505,803,191 40 10,552 .030263537
A 502,481,119 0.9850 510,133,116 47 5,881 .005213262
A 532,973,947 0.9638 552,992,267 51 4,470 .003018714
A 564,886,082 0.9795 576,708,608 50 2,789 .002805559
B 61,187,759 0.9502 64,394,611 11 580 .014482230
B 45,733,019 1.0198 44,845,086 6 27 .036811214
B 79,591,015 1.0156 78,368,467 8 17 .005449846
F1 206,694,114 0.9931 208,130,212 13 1,270 .004602978
F1 200,579,589 1.0813 185,498,556 12 282 .017807997
F1 196,163,132 0.9422 208,196,914 12 94 .026058469
F1 269,696,962 1.0198 264,460,641 8 41 .016928263
L1 138,434,215 1.0581 130,832,828 10 1,219 .005929585
L1 150,142,663 1.0052 149,365,960 11 237 .007034649
L1 121,437,199 1.0413 116,620,762 8 61 .003541815
L1 173,554,265 1.0030 173,035,160 7 23 .001055755
Random Totals: 3,724,826,816   3,769,386,379 294 27,543  
Catg D1 Exception Values: 1,438,234   1,344,819      
Catg B Exception Values: 42,366,140   42,264,917      
Total Test Values (4): 3,768,631,190   3,812,996,115      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 190,649,806

Confidence Interval Values (5)

State Lower Limit: 3,622,346,309 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,768,631,190 (Within Confidence Interval)
State Upper Limit: 4,003,645,921 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,676,344,817 (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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