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2008 Confidence Interval Detail
247/Wilson
247-906/Stockdale ISD

Category Summary

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

Stratum
Variance
A 13,210,751 0.7832 16,867,660 7 348 .106725319
A 13,871,666 0.9133 15,188,510 7 196 .006816278
A 10,271,311 0.9575 10,727,218 7 101 .017859077
A 12,279,915 0.9821 12,503,732 6 75 .012400481
D3 65,325,331 0.8009 81,564,903 20 2,670 .065320238
Random Totals: 114,958,974   136,852,023 47 3,390  
Catg D1 Exception Values: 11,593,326   9,478,602      
Total Test Values (4): 126,552,300   146,330,625      

Margin of Error

Margin of Error Percent: 7.1026909
Margin of Error Value: 10,393,412

Confidence Interval Values (5)

Local Test Value: 126,552,300 (Outside Confidence Interval)
State Lower Limit: 135,937,213 (State Test Value minus Margin of Error Percent)
State Upper Limit: 156,724,037 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 138,689,119 (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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