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2007 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 45,623,108 0.8725 52,290,095 15 538 .036890171
A 45,483,873 0.9175 49,573,704 10 371 .016114078
A 45,613,141 0.9524 47,892,840 18 288 .004694814
A 45,442,969 1.0113 44,935,201 14 175 .007913317
G1 21,400,620 0.9948 21,512,485 7 98 .013611840
G1 21,293,420 0.9841 21,637,456 6 41 .001747217
G1 22,145,239 1.0469 21,153,156 5 23 .019906708
G1 19,836,819 0.9531 20,812,946 4 8 .014360355
Random Totals: 266,839,189   279,807,883 79 1,542  
Catg D1 Exception Values: 483,990   436,180      
Total Test Values (4): 267,323,179   280,244,063      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,012,203

Confidence Interval Values (5)

State Lower Limit: 266,231,860 (State Test Value minus Margin of Error Percent)
Local Test Value: 267,323,179 (Within Confidence Interval)
State Upper Limit: 294,256,266 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 321,655,842 (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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