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2009 Confidence Interval Detail
225/Titus
225-907/Harts Bluff ISD

Category Summary

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

Stratum
Variance
A 26,024,369 0.9880 26,340,454 8 249 .016596065
A 25,562,524 1.0038 25,465,754 8 155 .004623358
A 28,081,736 0.9512 29,522,431 8 128 .003810998
A 28,278,801 1.0914 25,910,574 9 67 .004919121
D3 24,006,565 0.9322 25,752,591 10 828 .018717687
Random Totals: 131,953,995   132,991,804 43 1,427  
Catg J Exception Values: 2,465,402   2,519,698      
Catg D1 Exception Values: 1,746,491   1,531,032      
Total Test Values (4): 136,165,888   137,042,534      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 6,852,127

Confidence Interval Values (5)

State Lower Limit: 130,190,407 (State Test Value minus Margin of Error Percent)
Local Test Value: 136,165,888 (Within Confidence Interval)
State Upper Limit: 143,894,661 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 134,446,417 (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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