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2006 Confidence Interval Detail
241/Wharton
241-903/El Campo ISD

Category Summary

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

Stratum
Variance
A 86,895,831 0.9935 87,464,349 24 1,933 .041324476
A 86,774,687 0.9873 87,890,901 23 1,000 .014864487
A 86,935,756 0.9540 91,127,627 21 657 .012858607
A 86,681,556 1.0056 86,198,842 15 379 .001247317
D3 76,276,270 1.0199 74,787,989 23 6,387 .015772608
F1 19,212,803 0.9958 19,293,837 7 278 .015409180
F1 19,166,588 0.9432 20,320,810 12 93 .078437608
F1 18,879,727 1.0985 17,186,825 5 25 .013428566
G1 105,087,385 0.8547 122,952,363 7 109 .035670712
G1 108,402,524 0.9606 112,848,765 6 26 .013976150
G1 108,283,518 1.0325 104,875,078 4 11 .004497926
G1 98,098,257 0.9669 101,456,466 3 5 .003559345
L1 13,615,954 0.9941 13,696,765 7 260 .000717245
L1 13,494,942 1.0158 13,285,038 8 62 .002207056
L1 14,584,573 1.0241 14,241,356 5 20 .017546327
L1 12,425,998 0.8951 13,882,246 3 4 .011029460
Random Totals: 954,816,369   981,509,257 173 11,249  
Catg D1 Exception Values: 59,107,580   56,031,041      
Catg F1 Exception Values: 18,991,225   19,600,124      
Total Test Values (4): 1,032,915,174   1,057,140,422      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,857,021

Confidence Interval Values (5)

State Lower Limit: 1,004,283,401 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,032,915,174 (Within Confidence Interval)
State Upper Limit: 1,109,997,443 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,096,021,443 (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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