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2007 Confidence Interval Detail
065/Donley
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
A 809,455 0.9183 881,471 6 77 .000679239
A 805,612 0.9277 868,397 6 41 .001415961
A 817,711 0.9829 831,937 5 19 .021701511
A 774,279 1.0228 757,019 4 10 .005197798
D3 6,506,205 0.8507 7,648,060 20 820 .048933803
L1 1,510,190 0.9509 1,588,169 12 17 .035781132
Random Totals: 11,223,452   12,575,053 53 984  
Catg J Exception Values: 5,443,811   5,846,354      
Catg D1 Exception Values: 7,871,024   10,402,990      
Total Test Values (4): 24,538,287   28,824,397      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 1,441,220

Confidence Interval Values (5)

Local Test Value: 24,538,287 (Outside Confidence Interval)
State Lower Limit: 27,383,177 (State Test Value minus Margin of Error Percent)
State Upper Limit: 30,265,617 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 31,714,736 (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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