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2006 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 40,849,761 0.8552 47,766,325 11 516 .033460555
A 40,734,671 0.8981 45,356,498 10 354 .018552114
A 40,771,316 0.9496 42,935,253 26 283 .008579768
A 40,687,045 0.9787 41,572,540 27 181 .004084983
G1 24,449,880 0.9899 24,699,343 7 96 .006712579
G1 23,745,651 1.1118 21,357,844 6 35 .006876708
G1 24,811,760 1.1116 22,320,763 5 24 .008286182
G1 22,895,160 1.0123 22,616,971 4 11 .016322536
Random Totals: 258,945,244   268,625,537 96 1,500  
Catg D1 Exception Values: 555,340   520,295      
Total Test Values (4): 259,500,584   269,145,832      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 13,457,292

Confidence Interval Values (5)

State Lower Limit: 255,688,540 (State Test Value minus Margin of Error Percent)
Local Test Value: 259,500,584 (Within Confidence Interval)
State Upper Limit: 282,603,124 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 315,190,367 (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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