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2009 Confidence Interval Detail
244/Wilbarger
244-903/Vernon ISD

Category Summary

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

Stratum
Variance
A 46,452,650 0.9898 46,931,350 12 1,530 .072263549
A 47,195,740 0.9999 47,200,460 16 837 .028458814
A 50,993,130 1.0152 50,229,639 17 569 .020080280
A 53,129,980 1.0077 52,724,005 17 346 .003193092
D3 56,887,830 1.0356 54,932,242 30 2,951 .010345588
F1 13,658,430 0.7595 17,983,450 8 266 .230779660
F1 15,112,550 0.8101 18,655,166 9 73 .070067233
F1 12,679,930 0.7813 16,229,272 6 15 .024338868
G1 5,120,760 1.0794 4,744,080 6 39 .037652570
G1 5,399,390 1.0226 5,280,061 4 12 .011133281
G1 5,363,360 1.0199 5,258,712 3 6 .007172832
G1 4,218,950 0.9757 4,324,024 2 3 .000233161
L1 7,006,360 0.9525 7,355,759 7 193 .001216052
L1 7,925,470 0.7419 10,682,666 6 48 .249366213
L1 7,147,490 0.9767 7,317,999 6 14 .001542269
Random Totals: 338,292,020   349,848,885 149 6,902  
Catg J Exception Values: 47,025,381   42,858,366      
Catg D1 Exception Values: 24,257,910   29,674,911      
Catg F1 Exception Values: 10,195,370   12,272,974      
Catg L1 Exception Values: 5,285,850   5,678,290      
Total Test Values (4): 425,056,531   440,333,426      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 22,016,671

Confidence Interval Values (5)

State Lower Limit: 418,316,755 (State Test Value minus Margin of Error Percent)
Local Test Value: 425,056,531 (Within Confidence Interval)
State Upper Limit: 462,350,097 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 725,774,098 (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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