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2008 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 5,524,214 0.9436 5,854,402 15 323 .061749810
A 6,346,080 1.0429 6,085,032 15 170 .008857490
A 6,283,710 0.9978 6,297,565 15 98 .008993642
A 7,560,220 1.0034 7,534,602 13 63 .011925328
D3 10,685,226 0.9613 11,115,392 25 1,620 .029487803
L1 1,427,550 1.0337 1,381,010 6 31 .008503924
L1 1,348,070 1.0391 1,297,344 4 8 .005906217
L1 1,471,240 1.0158 1,448,356 3 6 .000331147
L1 833,050 1.0237 813,764 2 2 .000393057
Random Totals: 41,479,360   41,827,467 98 2,321  
Catg J Exception Values: 2,275,410   1,954,496      
Catg D1 Exception Values: 41,030,114   37,442,182      
Total Test Values (4): 84,784,884   81,224,145      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,061,207

Confidence Interval Values (5)

State Lower Limit: 77,162,938 (State Test Value minus Margin of Error Percent)
Local Test Value: 84,784,884 (Within Confidence Interval)
State Upper Limit: 85,285,352 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 97,013,393 (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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