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2011 Confidence Interval Detail
234/Van Zandt
234-902/Canton ISD

Category Summary

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

Stratum
Variance
A 66,596,200 0.9967 66,816,695 12 971 .042096592
A 66,141,850 1.0084 65,590,887 17 625 .012835020
A 67,350,250 1.0303 65,369,553 9 449 .031598028
A 63,935,720 0.9804 65,213,913 8 270 .015647177
D3 193,365,810 1.0054 192,327,243 33 5,495 .026579833
F1 31,528,320 0.9504 33,173,737 10 208 .010005195
F1 30,231,020 0.9791 30,876,335 10 67 .014340287
F1 31,022,570 0.9556 32,463,970 7 26 .020164658
F1 27,534,280 0.9571 28,768,446 4 7 .028897873
L1 8,291,430 1.1027 7,519,207 10 215 .011711197
L1 8,321,280 1.0337 8,049,995 8 45 .008958424
L1 10,054,920 1.0012 10,042,869 7 19 .008777774
Random Totals: 604,373,650   606,212,850 135 8,397  
Catg D1 Exception Values: 9,935,330   5,649,498      
Catg L1 Exception Values: 7,392,070   7,096,509      
Total Test Values (4): 621,701,050   618,958,857      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 30,947,943

Confidence Interval Values (5)

State Lower Limit: 588,010,914 (State Test Value minus Margin of Error Percent)
Local Test Value: 621,701,050 (Within Confidence Interval)
State Upper Limit: 649,906,800 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 596,803,197 (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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