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2011 Confidence Interval Detail
212/Smith
212-910/Winona ISD

Category Summary

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

Stratum
Variance
A 18,577,140 0.9865 18,831,363 7 460 .083484206
A 19,056,764 0.8080 23,585,104 8 309 .018306053
A 19,588,869 0.9073 21,590,289 7 232 .029359350
A 20,395,254 0.9399 21,699,387 7 146 .014701879
D3 70,793,268 0.9950 71,149,013 21 3,219 .267524847
F1 9,383,463 1.0313 9,098,674 8 53 .024961210
F1 8,044,642 0.8488 9,477,665 6 16 .037008762
F1 9,240,537 1.0144 9,109,362 4 8 .023824740
F1 7,804,478 0.8646 9,026,692 2 3 .012961201
G1 72,905,282 1.0247 71,147,928 8 39 .020101211
L1 11,674,256 0.9581 12,184,799 8 49 .009828524
L1 17,379,508 1.0077 17,246,708 5 10 .000286049
Random Totals: 284,843,461   294,146,984 91 4,544  
Catg D1 Exception Values: 8,477,811   6,578,173      
Catg G1 Exception Values: 20,222,713   19,548,585      
Catg L1 Exception Values: 7,614,291   6,193,525      
Total Test Values (4): 321,158,276   326,467,267      

Margin of Error

Margin of Error Percent: 5.5720566
Margin of Error Value: 18,190,941

Confidence Interval Values (5)

State Lower Limit: 308,276,326 (State Test Value minus Margin of Error Percent)
Local Test Value: 321,158,276 (Within Confidence Interval)
State Upper Limit: 344,658,208 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 365,930,359 (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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