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2010 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 75,882,856 1.0543 71,974,633 15 1,178 .026299659
A 78,633,506 0.9880 79,588,569 15 715 .011026641
A 78,384,929 1.0353 75,712,285 16 489 .003203702
A 81,418,300 1.0033 81,150,503 15 282 .010057274
D3 180,618,073 0.9682 186,550,375 26 5,325 .019743837
F1 8,242,192 0.9751 8,452,663 9 112 .001631035
F1 7,653,720 0.9650 7,931,316 8 47 .002543305
F1 6,868,473 0.9670 7,102,868 6 17 .000397238
F1 8,534,243 0.9695 8,802,726 4 8 .001646498
Random Totals: 526,236,292   527,265,938 114 8,173  
Catg J Exception Values: 11,764,687   13,606,505      
Catg D1 Exception Values: 11,337,259   10,471,779      
Total Test Values (4): 549,338,238   551,344,222      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 27,567,211

Confidence Interval Values (5)

State Lower Limit: 523,777,011 (State Test Value minus Margin of Error Percent)
Local Test Value: 549,338,238 (Within Confidence Interval)
State Upper Limit: 578,911,433 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 566,891,975 (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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