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2011 Confidence Interval Detail
184/Parker
184-903/Weatherford ISD

Category Summary

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

Stratum
Variance
A 448,811,690 0.9828 456,666,351 49 5,205 .006369452
A 433,570,650 0.9837 440,754,956 44 3,049 .005537906
A 429,522,130 0.9622 446,395,895 53 2,198 .009759967
A 398,459,640 0.9855 404,322,314 33 1,305 .001463602
D3 353,284,810 1.0344 341,535,973 15 6,648 .017422221
F1 157,753,450 0.9401 167,804,968 10 445 .028138341
F1 162,472,230 0.9376 173,285,228 9 159 .005570758
F1 147,261,910 0.8819 166,982,549 9 52 .027600261
F1 149,648,400 0.9376 159,607,935 6 13 .007332516
G1 48,096,840 0.9526 50,490,069 10 99 .032352193
G1 47,958,730 1.0157 47,217,417 8 41 .002507029
G1 47,717,500 1.0409 45,842,540 7 25 .004296069
G1 45,636,400 1.0066 45,337,175 6 14 .003974503
Random Totals: 2,870,194,380   2,946,243,370 259 19,253  
Catg D1 Exception Values: 10,677,190   6,729,485      
Total Test Values (4): 2,880,871,570   2,952,972,855      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 147,648,643

Confidence Interval Values (5)

State Lower Limit: 2,805,324,212 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,880,871,570 (Within Confidence Interval)
State Upper Limit: 3,100,621,498 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,330,360,379 (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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