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2009 Confidence Interval Detail
144/Lee
144-902/Lexington ISD

Category Summary

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

Stratum
Variance
A 18,484,934 0.8436 21,911,965 14 349 .074933726
A 16,808,520 0.9796 17,158,555 8 170 .011553698
A 17,270,590 1.0916 15,821,354 9 117 .015192310
A 19,522,770 1.1167 17,482,556 8 84 .011642089
D3 167,182,432 1.0355 161,450,924 21 5,496 .086183176
Random Totals: 239,269,246   233,825,354 60 6,216  
Catg D1 Exception Values: 11,165,889   9,183,932      
Total Test Values (4): 250,435,135   243,009,286      

Margin of Error

Margin of Error Percent: 8.6411801
Margin of Error Value: 20,998,870

Confidence Interval Values (5)

State Lower Limit: 222,010,416 (State Test Value minus Margin of Error Percent)
Local Test Value: 250,435,135 (Within Confidence Interval)
State Upper Limit: 264,008,156 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 315,167,512 (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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