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2008 Confidence Interval Detail
019/Bowie
019-914/Leary ISD

Category Summary

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

Stratum
Variance
A 3,433,967 0.8793 3,905,342 9 102 .009400410
A 4,191,742 0.9422 4,448,888 8 67 .003571929
A 4,170,971 1.0425 4,000,931 8 34 .006326606
A 3,281,817 1.0441 3,143,202 5 9 .001857779
D3 8,502,557 1.0953 7,762,765 23 213 .046689711
F1 1,994,071 0.8647 2,306,084 11 27 .087843484
Random Totals: 25,575,125   25,567,212 64 452  
Catg D1 Exception Values: 455,612   446,065      
Total Test Values (4): 26,030,737   26,013,277      

Margin of Error

Margin of Error Percent: 5.0000006
Margin of Error Value: 1,300,664

Confidence Interval Values (5)

State Lower Limit: 24,712,613 (State Test Value minus Margin of Error Percent)
Local Test Value: 26,030,737 (Within Confidence Interval)
State Upper Limit: 27,313,941 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 26,344,686 (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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