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2009 Confidence Interval Detail
021/Brazos
093-904/Navasota ISD

Category Summary

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

Stratum
Variance
A 6,626,240 0.9044 7,326,670 7 132 .036570619
A 6,701,150 1.0003 6,699,140 7 68 .042421668
A 6,915,760 1.1055 6,255,776 8 44 .024760080
A 8,813,570 1.1378 7,746,150 8 38 .013836096
D3 33,398,715 0.9322 35,827,843 14 754 .048869146
L1 7,900,290 0.9943 7,945,580 6 58 .000854440
Random Totals: 70,355,725   71,801,159 50 1,094  
Catg J Exception Values: 9,878,010   10,291,446      
Catg D1 Exception Values: 7,948,023   7,415,550      
Catg L1 Exception Values: 4,574,000   4,574,000      
Total Test Values (4): 92,755,758   94,082,155      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 4,704,108

Confidence Interval Values (5)

State Lower Limit: 89,378,047 (State Test Value minus Margin of Error Percent)
Local Test Value: 92,755,758 (Within Confidence Interval)
State Upper Limit: 98,786,263 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 132,878,555 (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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