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2006 Confidence Interval Detail
140/Lamb
140-905/Olton ISD

Category Summary

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

Stratum
Variance
A 5,531,345 0.8923 6,198,975 17 354 .010216757
A 5,464,419 0.9224 5,924,132 17 144 .042347278
A 5,479,668 0.9654 5,676,060 15 85 .006186261
A 5,431,025 1.0315 5,265,172 15 45 .009758697
D3 9,417,399 0.9333 10,090,431 18 1,491 .008700680
F1 1,052,135 0.9327 1,128,053 7 55 .024066754
F1 1,033,481 0.9781 1,056,621 7 18 .009129001
F1 1,100,874 0.9901 1,111,882 3 6 .006932574
L1 1,471,487 1.0093 1,457,928 10 30 .001991488
L1 1,687,327 1.0222 1,650,682 4 6 .000874158
Random Totals: 37,669,160   39,559,936 113 2,234  
Catg J Exception Values: 2,820,850   2,519,011      
Catg D1 Exception Values: 21,244,374   26,018,964      
Catg F1 Exception Values: 1,170,380   1,089,980      
Catg L1 Exception Values: 2,644,067   2,698,700      
Total Test Values (4): 65,548,831   71,886,591      

Margin of Error

Margin of Error Percent: 5.0000006
Margin of Error Value: 3,594,330

Confidence Interval Values (5)

Local Test Value: 65,548,831 (Outside Confidence Interval)
State Lower Limit: 68,292,261 (State Test Value minus Margin of Error Percent)
State Upper Limit: 75,480,921 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 75,581,442 (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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