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2009 Confidence Interval Detail
153/Lynn
153-903/O'Donnell ISD

Category Summary

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

Stratum
Variance
A 3,086,650 0.9779 3,156,407 9 145 .044295902
A 3,111,480 1.0765 2,890,367 10 66 .005788598
A 3,147,370 0.9726 3,236,037 8 40 .003138859
A 3,345,390 0.9829 3,403,591 7 28 .002356429
D3 4,301,090 0.9642 4,460,786 15 863 .001744498
G1 897,850 1.2370 725,829 3 6 .049835238
Random Totals: 17,889,830   17,873,017 52 1,148  
Catg J Exception Values: 643,690   588,473      
Catg D1 Exception Values: 25,478,640   26,868,733      
Catg G1 Exception Values: 5,309,980   5,489,992      
Total Test Values (4): 49,322,140   50,820,215      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 2,541,011

Confidence Interval Values (5)

State Lower Limit: 48,279,204 (State Test Value minus Margin of Error Percent)
Local Test Value: 49,322,140 (Within Confidence Interval)
State Upper Limit: 53,361,226 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 52,501,199 (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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