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2008 Confidence Interval Detail
005/Archer
005-904/Windthorst ISD

Category Summary

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

Stratum
Variance
A 4,282,625 0.9506 4,505,181 11 79 .003514907
A 5,355,170 0.9944 5,385,328 11 58 .011659794
A 4,813,380 0.9831 4,896,125 11 35 .026164747
A 4,669,640 1.0333 4,519,152 9 21 .001304139
D3 18,385,400 0.9509 19,334,736 20 716 .111923436
G1 3,386,480 0.9998 3,387,157 7 27 .025762266
Random Totals: 40,892,695   42,027,679 69 936  
Catg D1 Exception Values: 4,761,610   4,139,160      
Catg G1 Exception Values: 934,370   919,077      
Total Test Values (4): 46,588,675   47,085,916      

Margin of Error

Margin of Error Percent: 6.1920596
Margin of Error Value: 2,915,588

Confidence Interval Values (5)

State Lower Limit: 44,170,328 (State Test Value minus Margin of Error Percent)
Local Test Value: 46,588,675 (Within Confidence Interval)
State Upper Limit: 50,001,504 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 49,784,642 (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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