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2008 Confidence Interval Detail
109/Hill
109-914/Penelope ISD

Category Summary

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

Stratum
Variance
A 1,519,770 0.9888 1,536,984 12 51 .042398038
A 1,466,200 0.9417 1,556,971 9 28 .005975521
A 1,376,950 1.0132 1,359,011 9 17 .007070042
A 1,748,810 0.9822 1,780,503 9 13 .004258566
D3 10,655,450 0.9490 11,228,082 42 755 .033719849
Random Totals: 16,767,180   17,461,551 81 864  
Catg J Exception Values: 1,152,757   1,153,882      
Catg D1 Exception Values: 3,727,213   3,375,341      
Total Test Values (4): 21,647,150   21,990,774      

Margin of Error

Margin of Error Percent: 5.0000014
Margin of Error Value: 1,099,539

Confidence Interval Values (5)

State Lower Limit: 20,891,235 (State Test Value minus Margin of Error Percent)
Local Test Value: 21,647,150 (Within Confidence Interval)
State Upper Limit: 23,090,313 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 19,843,064 (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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