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2010 Confidence Interval Detail
069/Edwards
069-901/Rocksprings ISD

Category Summary

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

Stratum
Variance
A 3,787,438 0.9856 3,842,774 10 210 .026926902
A 3,690,761 0.9079 4,065,162 9 115 .078255787
A 5,151,585 0.9495 5,425,577 9 101 .004176981
A 2,666,808 0.9971 2,674,564 8 30 .007040336
D3 89,483,993 1.0153 88,135,520 42 6,439 .061052226
G1 24,367,970 1.0085 24,162,588 11 176 .071961175
G1 24,322,310 1.0335 23,533,924 10 70 .033518388
G1 25,138,110 1.0300 24,405,932 9 34 .046664331
G1 23,526,960 1.1196 21,013,719 7 15 .065932425
Random Totals: 202,135,935   197,259,760 115 7,190  
Catg J Exception Values: 15,106,460   13,753,590      
Catg D1 Exception Values: 36,239,434   40,370,348      
Total Test Values (4): 253,481,829   251,383,698      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,569,185

Confidence Interval Values (5)

State Lower Limit: 238,814,513 (State Test Value minus Margin of Error Percent)
Local Test Value: 253,481,829 (Within Confidence Interval)
State Upper Limit: 263,952,883 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 283,265,381 (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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