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2009 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 404,213,380 0.9013 448,478,176 55 4,857 .021129752
A 419,554,100 0.9878 424,735,878 56 3,035 .017801504
A 424,588,480 0.9760 435,029,180 58 2,221 .004911014
A 448,630,370 0.9700 462,505,536 56 1,480 .008063838
D3 346,423,390 0.9911 349,534,245 31 6,549 .023954672
F1 141,027,900 0.9248 152,495,567 9 431 .017437731
F1 157,794,880 0.9399 167,884,754 8 163 .041359631
F1 151,469,130 0.8774 172,634,067 8 55 .008822322
F1 142,192,230 0.9580 148,426,127 7 15 .005955284
G1 69,064,499 0.9459 73,014,588 7 101 .024323752
G1 68,626,000 1.0152 67,598,503 6 45 .000407928
G1 70,485,690 1.0324 68,273,625 6 32 .002006128
G1 65,687,770 1.0126 64,870,403 5 15 .001415556
L1 40,177,270 1.1487 34,976,295 7 457 .096037686
L1 48,473,200 0.9941 48,760,889 7 109 .000848213
L1 37,662,890 0.9956 37,829,339 5 22 .000186556
L1 50,651,980 0.9704 52,197,012 3 9 .000544307
Random Totals: 3,086,723,159   3,209,244,184 334 19,596  
Catg D1 Exception Values: 10,681,350   7,265,724      
Total Test Values (4): 3,097,404,509   3,216,509,908      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 160,825,495

Confidence Interval Values (5)

State Lower Limit: 3,055,684,413 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,097,404,509 (Within Confidence Interval)
State Upper Limit: 3,377,335,403 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,403,043,003 (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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