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2009 Confidence Interval Detail
044/Collingsworth
065-902/Hedley ISD

Category Summary

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

Stratum
Variance
D3 1,029,220 0.9858 1,044,045 25 319 .011546884
Random Totals: 1,029,220   1,044,045 25 319  
Catg D1 Exception Values: 8,861,600   8,821,400      
Total Test Values (4): 9,890,820   9,865,445      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 493,272

Confidence Interval Values (5)

State Lower Limit: 9,372,173 (State Test Value minus Margin of Error Percent)
Local Test Value: 9,890,820 (Within Confidence Interval)
State Upper Limit: 10,358,717 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 10,589,344 (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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