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2008 Confidence Interval Detail
014/Bell
014-902/Bartlett ISD

Category Summary

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

Stratum
Variance
A 3,116,686 0.9676 3,221,048 8 96 .002396081
A 3,324,122 0.9444 3,519,824 7 60 .005175961
A 3,389,468 0.9039 3,749,826 9 41 .025350620
A 3,449,618 0.9182 3,756,935 7 29 .003401020
D3 11,331,323 1.0135 11,180,388 21 697 .005757112
F1 366,256 0.9170 399,407 6 16 .007952575
F1 705,322 0.9617 733,412 5 12 .002010377
F1 812,936 0.9606 846,279 3 4 .000874366
Random Totals: 26,495,731   27,407,119 66 955  
Catg J Exception Values: 2,517,403   2,601,433      
Catg D1 Exception Values: 5,571,656   4,840,246      
Catg F1 Exception Values: 783,353   797,432      
Total Test Values (4): 35,368,143   35,646,230      

Margin of Error

Margin of Error Percent: 5.0000014
Margin of Error Value: 1,782,312

Confidence Interval Values (5)

State Lower Limit: 33,863,918 (State Test Value minus Margin of Error Percent)
Local Test Value: 35,368,143 (Within Confidence Interval)
State Upper Limit: 37,428,542 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 33,441,166 (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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