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2007 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 8,240,159 0.9023 9,132,394 11 264 .026319133
A 8,237,949 0.9397 8,766,573 12 148 .028948103
A 8,241,812 0.9576 8,606,738 11 101 .005236140
A 8,132,804 0.9901 8,214,124 10 65 .003229406
D3 22,210,678 1.0267 21,633,075 27 1,454 .025333149
F1 1,062,566 0.8213 1,293,761 9 48 .103509352
F1 1,074,998 0.8977 1,197,503 8 17 .008526155
F1 1,312,001 0.9284 1,413,185 3 4 .007356377
Random Totals: 58,512,967   60,257,353 91 2,101  
Catg J Exception Values: 5,044,632   4,982,390      
Catg D1 Exception Values: 10,197,937   9,283,096      
Catg F1 Exception Values: 783,353   796,177      
Total Test Values (4): 74,538,889   75,319,016      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 3,765,951

Confidence Interval Values (5)

State Lower Limit: 71,553,065 (State Test Value minus Margin of Error Percent)
Local Test Value: 74,538,889 (Within Confidence Interval)
State Upper Limit: 79,084,967 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 70,288,921 (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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