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2010 Confidence Interval Detail
043/Collin
043-919/Lovejoy ISD

Category Summary

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

Stratum
Variance
A 359,782,866 0.9678 371,753,323 25 1,446 .006646857
A 376,196,535 0.9729 386,675,439 25 1,110 .001656763
A 369,320,268 0.9768 378,092,002 25 798 .008232281
A 347,723,593 0.9830 353,737,124 20 479 .003459328
Random Totals: 1,453,023,262   1,490,257,888 95 3,833  
Catg J Exception Values: 3,921,933   4,869,346      
Catg D1 Exception Values: 281,363   253,561      
Total Test Values (4): 1,457,226,558   1,495,380,795      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 74,769,040

Confidence Interval Values (5)

State Lower Limit: 1,420,611,755 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,457,226,558 (Within Confidence Interval)
State Upper Limit: 1,570,149,835 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,484,600,020 (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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