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2009 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 6,498,684 0.9803 6,629,281 9 344 .013219386
A 6,318,110 0.9387 6,730,702 9 154 .004898054
A 6,419,130 0.9281 6,916,421 8 92 .003715314
A 6,672,000 0.9672 6,898,263 8 50 .002120637
D3 11,139,360 0.9634 11,562,549 22 1,619 .003209133
L1 1,303,570 1.0040 1,298,376 6 29 .001476121
L1 1,173,470 1.0357 1,133,021 5 8 .000619939
L1 935,900 0.9803 954,708 4 4 .000584829
L1 1,895,560 1.0868 1,744,166 2 5 .000676519
Random Totals: 42,355,784   43,867,487 73 2,305  
Catg J Exception Values: 1,658,820   1,611,802      
Catg D1 Exception Values: 55,815,948   50,221,040      
Total Test Values (4): 99,830,552   95,700,329      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,785,016

Confidence Interval Values (5)

State Lower Limit: 90,915,313 (State Test Value minus Margin of Error Percent)
Local Test Value: 99,830,552 (Within Confidence Interval)
State Upper Limit: 100,485,345 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 114,341,073 (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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