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2007 Confidence Interval Detail
217/Stonewall
217-901/Aspermont CISD

Category Summary

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

Stratum
Variance
A 2,525,687 0.8201 3,079,731 14 210 .105405978
A 2,543,348 0.9536 2,667,102 11 109 .006587148
A 2,538,957 1.0208 2,487,223 12 71 .017448212
A 2,485,974 1.0015 2,482,251 10 38 .005547872
D3 10,011,543 0.4927 20,319,754 49 3,052 .155481415
G1 22,968,030 0.9837 23,348,612 8 75 .005729690
G1 22,701,970 0.9234 24,585,196 7 27 .127571444
G1 23,395,021 0.9959 23,491,335 5 10 .003291616
G1 21,259,870 1.0141 20,964,274 3 4 .003500820
Random Totals: 110,430,400   123,425,478 119 3,596  
Catg J Exception Values: 3,067,630   3,170,560      
Catg D1 Exception Values: 22,576,530   22,662,781      
Total Test Values (4): 136,074,560   149,258,819      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,462,941

Confidence Interval Values (5)

Local Test Value: 136,074,560 (Outside Confidence Interval)
State Lower Limit: 141,795,878 (State Test Value minus Margin of Error Percent)
State Upper Limit: 156,721,760 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 150,382,465 (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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