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2008 Confidence Interval Detail
092/Gregg
092-908/White Oak ISD

Category Summary

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

Stratum
Variance
A 37,591,339 0.9378 40,084,601 11 452 .027431578
A 46,839,300 0.9249 50,642,556 23 388 .006068404
A 61,273,720 0.9854 62,181,571 17 395 .007192297
A 54,036,260 1.0001 54,030,857 13 209 .002683182
G1 22,144,600 1.0356 21,383,353 10 97 .008547917
G1 22,420,790 1.0203 21,974,704 6 42 .001513366
G1 23,538,910 0.9843 23,914,366 5 19 .005951152
G1 20,408,640 1.0003 20,402,519 3 5 .001099786
Random Totals: 288,253,559   294,614,527 88 1,607  
Catg D1 Exception Values: 482,154   433,831      
Total Test Values (4): 288,735,713   295,048,358      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,752,418

Confidence Interval Values (5)

State Lower Limit: 280,295,940 (State Test Value minus Margin of Error Percent)
Local Test Value: 288,735,713 (Within Confidence Interval)
State Upper Limit: 309,800,776 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 353,541,161 (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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