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2008 Confidence Interval Detail
234/Van Zandt
234-903/Edgewood ISD

Category Summary

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

Stratum
Variance
A 21,188,460 0.9344 22,676,006 15 379 .011886553
A 20,231,700 0.9656 20,952,465 16 222 .024415408
A 22,668,910 0.9888 22,925,678 16 184 .005922543
A 22,066,320 1.0168 21,701,731 15 112 .006807341
D3 92,039,570 0.9273 99,255,441 43 2,724 .029018535
G1 7,342,099 0.9876 7,434,284 5 8 .002466534
Random Totals: 185,537,059   194,945,605 110 3,629  
Catg D1 Exception Values: 4,555,800   2,741,179      
Catg G1 Exception Values: 17,413,831   17,116,502      
Total Test Values (4): 207,506,690   214,803,286      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,740,164

Confidence Interval Values (5)

State Lower Limit: 204,063,122 (State Test Value minus Margin of Error Percent)
Local Test Value: 207,506,690 (Within Confidence Interval)
State Upper Limit: 225,543,450 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 205,618,305 (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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