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2010 Confidence Interval Detail
043/Collin
043-908/Melissa ISD

Category Summary

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

Stratum
Variance
A 80,709,081 0.9935 81,237,122 35 671 .002017101
A 83,348,012 0.9872 84,428,699 24 455 .002649235
A 75,625,995 0.9717 77,828,543 15 300 .004926449
A 69,511,075 1.0052 69,151,487 13 180 .001856201
D3 40,974,359 1.0597 38,665,999 16 1,101 .027261889
Random Totals: 350,168,522   351,311,850 103 2,707  
Catg J Exception Values: 7,249,839   7,913,844      
Catg D1 Exception Values: 1,746,934   1,672,905      
Total Test Values (4): 359,165,295   360,898,599      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 18,044,930

Confidence Interval Values (5)

State Lower Limit: 342,853,669 (State Test Value minus Margin of Error Percent)
Local Test Value: 359,165,295 (Within Confidence Interval)
State Upper Limit: 378,943,529 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 417,622,955 (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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