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2008 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 314,273,032 0.9754 322,199,131 25 1,358 .012530186
A 359,263,687 0.9765 367,909,562 24 1,136 .005014488
A 341,031,475 0.9893 344,719,979 24 792 .001700226
A 391,808,398 0.9698 404,009,484 24 575 .004110028
D3 49,509,802 1.0605 46,685,339 10 506 .016410118
Random Totals: 1,455,886,394   1,485,523,495 107 4,367  
Catg D1 Exception Values: 279,070   262,763      
Total Test Values (4): 1,456,165,464   1,485,786,258      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 74,289,313

Confidence Interval Values (5)

State Lower Limit: 1,411,496,945 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,456,165,464 (Within Confidence Interval)
State Upper Limit: 1,560,075,571 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,428,531,234 (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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