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2008 Confidence Interval Detail
221/Taylor
221-905/Trent ISD

Category Summary

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

Stratum
Variance
A 1,211,044 0.8610 1,406,555 7 67 .019071095
A 1,022,020 0.8802 1,161,122 7 30 .044384092
A 1,134,835 1.0137 1,119,498 7 23 .034247745
A 1,915,368 1.0011 1,913,263 11 23 .011724602
D3 3,271,326 1.0128 3,229,982 23 370 .009327116
G1 1,895,688 0.9830 1,928,472 7 12 .005839627
Random Totals: 10,450,281   10,758,892 62 525  
Catg J Exception Values: 3,631,697   4,442,085      
Catg D1 Exception Values: 2,194,738   2,084,522      
Catg G1 Exception Values: 814,157   811,820      
Total Test Values (4): 17,090,873   18,097,319      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 904,866

Confidence Interval Values (5)

Local Test Value: 17,090,873 (Outside Confidence Interval)
State Lower Limit: 17,192,453 (State Test Value minus Margin of Error Percent)
State Upper Limit: 19,002,185 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 21,628,189 (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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