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2009 Confidence Interval Detail
182/Palo Pinto
182-903/Mineral Wells ISD

Category Summary

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

Stratum
Variance
A 83,334,700 0.7903 105,446,919 15 2,217 .111514421
A 90,944,520 1.1115 81,821,430 16 1,281 .084389171
A 92,031,990 0.9814 93,776,228 24 913 .022416227
A 99,929,500 0.9798 101,989,692 11 540 .005328238
D3 90,699,020 0.7137 127,082,836 12 2,599 .254025937
F1 23,335,470 1.0286 22,686,632 8 268 .027265475
F1 26,298,710 0.9544 27,555,228 7 101 .012022754
F1 23,891,650 0.9882 24,176,938 7 39 .008919660
F1 26,247,540 0.9656 27,182,622 4 13 .025588356
L1 12,147,430 0.9893 12,278,813 7 305 .004074894
L1 14,368,940 1.0192 14,098,254 9 80 .010967811
L1 12,811,390 1.0078 12,712,235 5 24 .003950371
L1 10,172,030 1.0460 9,724,694 2 2 .000995037
Random Totals: 606,212,890   660,532,521 127 8,382  
Catg D1 Exception Values: 4,598,940   4,904,000      
Total Test Values (4): 610,811,830   665,436,521      

Margin of Error

Margin of Error Percent: 6.5011734
Margin of Error Value: 43,261,182

Confidence Interval Values (5)

Local Test Value: 610,811,830 (Outside Confidence Interval)
State Lower Limit: 622,175,339 (State Test Value minus Margin of Error Percent)
State Upper Limit: 708,697,703 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 753,899,495 (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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