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2011 Confidence Interval Detail
234/Van Zandt
234-903/Edgewood ISD

Category Summary

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

Stratum
Variance
A 22,069,460 0.9199 23,991,151 7 385 .042842762
A 21,277,310 1.0377 20,504,298 7 229 .010015407
A 21,992,250 1.0188 21,586,425 7 175 .010388564
A 22,581,430 0.9829 22,974,290 7 110 .001729379
D3 97,082,850 1.1204 86,650,170 15 2,824 .011898894
G1 15,239,021 1.0406 14,644,456 8 13 .001792284
Random Totals: 200,242,321   190,350,790 51 3,736  
Catg D1 Exception Values: 4,591,040   2,377,900      
Catg G1 Exception Values: 10,116,791   10,250,896      
Total Test Values (4): 214,950,152   202,979,586      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,148,979

Confidence Interval Values (5)

State Lower Limit: 192,830,607 (State Test Value minus Margin of Error Percent)
State Upper Limit: 213,128,565 (State Test Value plus Margin of Error Percent)
Local Test Value: 214,950,152 (Outside Confidence Interval)
Value Assigned (6): 215,218,018 (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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