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2008 Confidence Interval Detail
166/Milam
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 5,874,207 0.9103 6,453,045 10 131 .056810488
D3 5,679,503 0.7579 7,493,737 10 364 .035119009
Random Totals: 11,553,710   13,946,782 20 495  
Catg D1 Exception Values: 1,216,860   1,115,916      
Total Test Values (4): 12,770,570   15,062,698      

Margin of Error

Margin of Error Percent: 8.9303125
Margin of Error Value: 1,345,146

Confidence Interval Values (5)

Local Test Value: 12,770,570 (Outside Confidence Interval)
State Lower Limit: 13,717,552 (State Test Value minus Margin of Error Percent)
State Upper Limit: 16,407,844 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 12,143,968 (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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