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2006 Confidence Interval Detail
163/Medina
163-908/Medina Valley ISD

Category Summary

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

Stratum
Variance
A 102,161,529 0.9458 108,015,996 7 1,940 .047866559
A 102,115,629 0.9690 105,382,486 7 936 .005631901
A 102,095,011 0.9474 107,763,364 7 611 .001246788
A 102,122,245 0.9585 106,543,813 7 368 .004184526
C 13,587,229 0.9990 13,600,830 7 797 .043982670
C 15,563,874 0.9903 15,716,322 7 518 .016834439
C 11,896,056 0.9240 12,874,519 7 286 .017512648
C 13,227,764 1.0596 12,483,733 7 159 .008671133
D3 98,804,610 1.0106 97,768,266 15 4,672 .310049889
F1 9,319,677 1.0147 9,184,662 6 82 .004500081
F1 9,309,346 0.9049 10,287,707 7 38 .023984452
F1 9,222,919 0.9436 9,774,183 5 16 .008393721
F1 9,174,816 1.0100 9,083,976 3 5 .005210975
Random Totals: 598,600,705   618,479,857 92 10,428  
Catg D1 Exception Values: 19,047,259   18,417,521      
Catg F1 Exception Values: 28,449,310   27,995,948      
Total Test Values (4): 646,097,274   664,893,326      

Margin of Error

Margin of Error Percent: 5.1567359
Margin of Error Value: 34,286,793

Confidence Interval Values (5)

State Lower Limit: 630,606,533 (State Test Value minus Margin of Error Percent)
Local Test Value: 646,097,274 (Within Confidence Interval)
State Upper Limit: 699,180,119 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 656,158,975 (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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