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2010 Confidence Interval Detail
125/Jim Wells
125-901/Alice ISD

Category Summary

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

Stratum
Variance
A 87,485,559 1.0718 81,624,892 12 2,379 .029459311
A 87,988,999 0.9493 92,688,296 11 1,293 .006156507
A 87,690,134 1.0174 86,190,421 22 759 .016247063
A 87,695,746 1.0062 87,155,383 13 475 .011771905
D3 115,747,697 1.0007 115,666,730 20 5,151 .029052593
F1 28,806,677 0.9542 30,189,349 10 335 .038084357
F1 29,104,742 0.9222 31,560,119 9 93 .040935123
F1 30,862,648 0.9929 31,083,340 8 35 .003452233
F1 28,513,044 0.9352 30,488,713 4 7 .009792805
L1 21,377,786 0.9854 21,694,526 10 340 .010784753
L1 20,930,090 0.9986 20,959,433 9 79 .053145972
L1 23,935,191 0.9644 24,818,738 7 24 .004729435
L1 14,716,230 0.9853 14,935,786 3 3 .003211073
Random Totals: 664,854,543   669,055,726 138 10,973  
Catg J Exception Values: 23,624,768   26,518,161      
Catg D1 Exception Values: 21,895,807   21,532,508      
Total Test Values (4): 710,375,118   717,106,395      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 35,855,320

Confidence Interval Values (5)

State Lower Limit: 681,251,075 (State Test Value minus Margin of Error Percent)
Local Test Value: 710,375,118 (Within Confidence Interval)
State Upper Limit: 752,961,715 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,086,514,257 (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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