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2012 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 88,287,267 0.9223 95,725,108 16 2,371 .030794540
A 89,462,409 0.8583 104,232,097 16 1,314 .033299141
A 88,664,318 0.8541 103,810,231 17 774 .038755414
A 92,183,646 0.9480 97,240,133 17 496 .006472589
D3 143,800,228 0.9701 148,232,376 19 5,224 .019993438
F1 31,002,064 0.7780 39,848,411 10 339 .127569241
F1 30,245,960 0.8557 35,346,453 9 86 .082681114
F1 31,733,035 0.6168 51,447,852 10 33 .136472637
F1 37,230,148 0.9570 38,902,976 4 8 .066426542
L1 24,845,741 1.0236 24,272,901 10 381 .002977493
L1 30,071,765 1.0295 29,210,068 10 88 .010643067
L1 29,674,873 0.9525 31,154,722 8 21 .002770966
L1 54,805,242 0.9626 56,934,596 3 10 .007939826
Random Totals: 772,006,696   856,357,924 149 11,145  
Catg D1 Exception Values: 21,569,385   22,425,814      
Total Test Values (4): 793,576,081   878,783,738      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 43,939,187

Confidence Interval Values (5)

Local Test Value: 793,576,081 (Outside Confidence Interval)
State Lower Limit: 834,844,551 (State Test Value minus Margin of Error Percent)
State Upper Limit: 922,722,925 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,596,956,956 (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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