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2008 Confidence Interval Detail
109/Hill
109-901/Abbott ISD

Category Summary

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

Stratum
Variance
A 3,773,110 0.9128 4,133,556 7 78 .033526422
A 3,916,760 0.9472 4,135,093 7 48 .019282362
A 5,009,850 1.0003 5,008,347 8 46 .009809434
A 5,144,850 1.0219 5,034,592 9 30 .005639712
D3 19,771,090 0.9545 20,713,557 43 1,127 .031418123
Random Totals: 37,615,660   39,025,145 74 1,329  
Catg J Exception Values: 4,250,177   4,257,203      
Catg D1 Exception Values: 6,290,350   5,888,506      
Total Test Values (4): 48,156,187   49,170,854      

Margin of Error

Margin of Error Percent: 5.0000006
Margin of Error Value: 2,458,543

Confidence Interval Values (5)

State Lower Limit: 46,712,311 (State Test Value minus Margin of Error Percent)
Local Test Value: 48,156,187 (Within Confidence Interval)
State Upper Limit: 51,629,397 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 45,797,955 (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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