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2008 Confidence Interval Detail
011/Bastrop
011-904/Smithville ISD

Category Summary

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

Stratum
Variance
A 66,610,140 1.1242 59,251,147 16 1,179 .063279906
A 77,286,581 0.9283 83,256,039 19 770 .024806667
A 74,637,109 1.0144 73,577,592 16 495 .012628956
A 74,987,912 0.9882 75,883,335 15 272 .004100451
D3 160,794,988 0.9655 166,540,640 34 5,213 .208143799
F1 8,202,601 0.9816 8,356,358 7 115 .011630253
F1 8,315,744 0.9821 8,467,309 7 46 .007278675
F1 9,806,912 0.9554 10,264,718 6 16 .002696739
Random Totals: 480,641,987   485,597,138 120 8,106  
Catg J Exception Values: 10,832,979   10,778,164      
Catg D1 Exception Values: 10,006,278   10,539,631      
Catg F1 Exception Values: 7,688,231   8,027,120      
Total Test Values (4): 509,169,475   514,942,053      

Margin of Error

Margin of Error Percent: 5.3972051
Margin of Error Value: 27,792,479

Confidence Interval Values (5)

State Lower Limit: 487,149,574 (State Test Value minus Margin of Error Percent)
Local Test Value: 509,169,475 (Within Confidence Interval)
State Upper Limit: 542,734,532 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 521,977,128 (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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