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2007 Confidence Interval Detail
208/Scurry
208-903/Ira ISD

Category Summary

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

Stratum
Variance
D3 7,695,149 1.0339 7,442,837 11 814 .006725855
G1 37,976,731 1.0877 34,914,711 9 92 .024656513
G1 37,351,960 1.0454 35,729,826 8 28 .045175846
G1 39,203,826 1.0364 37,826,926 6 12 .012517804
G1 34,270,491 1.0094 33,951,348 2 3 .000511344
Random Totals: 156,498,157   149,865,648 36 949  
Catg D1 Exception Values: 8,350,817   8,375,479      
Total Test Values (4): 164,848,974   158,241,127      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,912,056

Confidence Interval Values (5)

State Lower Limit: 150,329,071 (State Test Value minus Margin of Error Percent)
Local Test Value: 164,848,974 (Within Confidence Interval)
State Upper Limit: 166,153,183 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 187,933,005 (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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