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2009 Confidence Interval Detail
169/Montague
169-906/Goldburg ISD

Category Summary

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

Stratum
Variance
A 1,694,180 0.9293 1,823,071 6 60 .008865513
A 1,686,010 0.9760 1,727,469 6 33 .007015052
A 1,596,440 0.9850 1,620,751 5 19 .005009874
A 1,917,170 0.9136 2,098,479 4 8 .002671897
D3 19,154,160 0.9761 19,623,153 20 1,117 .019870072
G1 4,179,000 1.0896 3,835,352 6 23 .039952043
G1 3,769,560 1.0886 3,462,760 4 9 .067893399
G1 4,568,910 1.0700 4,270,009 3 6 .000578125
Random Totals: 38,565,430   38,461,044 54 1,275  
Catg J Exception Values: 6,735,039   6,998,007      
Catg D1 Exception Values: 5,128,220   4,486,550      
Catg G1 Exception Values: 3,263,990   3,338,367      
Total Test Values (4): 53,692,679   53,283,968      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,664,198

Confidence Interval Values (5)

State Lower Limit: 50,619,770 (State Test Value minus Margin of Error Percent)
Local Test Value: 53,692,679 (Within Confidence Interval)
State Upper Limit: 55,948,166 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 61,033,675 (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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