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2006 Confidence Interval Detail
125/Jim Wells
125-905/Premont ISD

Category Summary

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

Stratum
Variance
A 6,549,809 1.0586 6,187,237 7 334 .007496653
A 6,531,626 1.0003 6,529,667 7 196 .004688621
A 6,562,253 0.9394 6,985,579 7 136 .007896245
A 6,492,087 0.9189 7,065,064 6 81 .003466616
D3 16,759,167 0.9674 17,323,927 11 1,950 .001310616
G1 3,146,679 0.5544 5,675,828 5 19 .396784882
G1 2,949,646 1.0038 2,938,480 4 7 .017080419
G1 2,991,530 1.1838 2,527,057 3 5 .084906537
Random Totals: 51,982,797   55,232,839 50 2,728  
Catg J Exception Values: 7,537,290   7,752,322      
Catg D1 Exception Values: 9,960,986   11,255,965      
Catg G1 Exception Values: 11,282,672   11,435,207      
Total Test Values (4): 80,763,745   85,675,696      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 4,283,785

Confidence Interval Values (5)

Local Test Value: 80,763,745 (Outside Confidence Interval)
State Lower Limit: 81,391,911 (State Test Value minus Margin of Error Percent)
State Upper Limit: 89,959,481 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 130,011,897 (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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