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2006 Confidence Interval Detail
233/Val Verde
233-901/San Felipe-Del Rio CISD

Category Summary

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

Stratum
Variance
A 184,930,744 0.8146 227,020,309 17 4,640 .081134565
A 184,974,336 0.9193 201,212,157 20 2,392 .024599208
A 184,632,009 0.9854 187,367,576 14 1,678 .026888526
A 184,815,957 0.9673 191,063,741 29 1,030 .012552957
F1 49,046,132 0.7442 65,904,504 7 453 .101532134
F1 49,222,740 0.9548 51,552,933 9 147 .021092171
F1 54,342,879 0.8054 67,473,155 6 37 .144483946
F1 42,982,567 0.9894 43,443,063 2 3 .000146999
L1 28,135,898 0.9863 28,526,714 5 411 .006845697
L1 27,781,528 1.1265 24,661,809 8 72 .030134364
L1 28,527,758 0.9909 28,789,745 5 19 .029475001
Random Totals: 1,019,392,548   1,117,015,706 122 10,882  
Catg D1 Exception Values: 8,488,813   9,312,885      
Catg L1 Exception Values: 25,196,907   23,787,320      
Total Test Values (4): 1,053,078,268   1,150,115,911      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 57,505,796

Confidence Interval Values (5)

Local Test Value: 1,053,078,268 (Outside Confidence Interval)
State Lower Limit: 1,092,610,115 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,207,621,707 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,119,010,178 (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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