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2007 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 66,053,958 0.9448 69,913,165 37 1,180 .041046927
A 66,010,632 0.9724 67,884,237 39 640 .016882963
A 66,024,332 0.9550 69,135,426 20 439 .003531122
A 65,875,580 0.9968 66,087,059 25 256 .015142514
D3 135,669,869 1.0374 130,778,744 69 5,001 .067356180
F1 7,666,770 0.9524 8,049,948 7 111 .033568006
F1 7,723,583 0.9358 8,253,455 6 41 .054439634
F1 8,223,022 0.7640 10,763,118 5 13 .041938624
F1 7,023,583 1.1653 6,027,275 2 3 .005027309
Random Totals: 430,271,329   436,892,427 210 7,684  
Catg J Exception Values: 11,860,257   11,659,503      
Catg D1 Exception Values: 11,266,319   10,658,213      
Total Test Values (4): 453,397,905   459,210,143      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 22,960,507

Confidence Interval Values (5)

State Lower Limit: 436,249,636 (State Test Value minus Margin of Error Percent)
Local Test Value: 453,397,905 (Within Confidence Interval)
State Upper Limit: 482,170,650 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 467,076,732 (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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