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2008 Confidence Interval Detail
170/Montgomery
093-905/Richards ISD

Category Summary

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

Stratum
Variance
A 1,062,800 0.8350 1,272,814 16 34 .016745299
A 2,587,050 0.9005 2,872,904 12 42 .021198984
A 1,999,300 0.9177 2,178,599 9 20 .028803990
A 3,138,550 0.9656 3,250,362 5 18 .006352568
D3 4,820,300 0.9589 5,026,906 20 292 .018102373
Random Totals: 13,608,000   14,601,585 62 406  
Catg D1 Exception Values: 3,096,615   2,893,561      
Total Test Values (4): 16,704,615   17,495,146      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 874,757

Confidence Interval Values (5)

State Lower Limit: 16,620,389 (State Test Value minus Margin of Error Percent)
Local Test Value: 16,704,615 (Within Confidence Interval)
State Upper Limit: 18,369,903 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 19,229,535 (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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