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2006 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 63,111,198 0.9917 63,639,405 25 1,125 .017560315
A 63,187,631 0.9726 64,967,747 24 611 .022509332
A 63,167,871 0.9693 65,168,545 28 418 .010719615
A 62,960,096 0.9479 66,420,610 21 254 .011824465
D3 132,882,362 0.9664 137,502,444 64 5,044 .076645293
F1 6,477,774 0.8665 7,475,792 7 106 .083527566
F1 6,507,071 0.9337 6,969,124 6 42 .007818969
F1 12,554,990 0.9104 13,790,630 5 15 .012851217
Random Totals: 410,848,993   425,934,297 180 7,615  
Catg J Exception Values: 11,598,078   13,369,780      
Catg D1 Exception Values: 11,453,235   10,727,674      
Total Test Values (4): 433,900,306   450,031,751      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 22,501,588

Confidence Interval Values (5)

State Lower Limit: 427,530,163 (State Test Value minus Margin of Error Percent)
Local Test Value: 433,900,306 (Within Confidence Interval)
State Upper Limit: 472,533,339 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 446,143,236 (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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