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2009 Confidence Interval Detail
043/Collin
043-911/Princeton ISD

Category Summary

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

Stratum
Variance
A 93,262,424 0.9419 99,015,208 19 1,409 .042117658
A 100,897,927 1.0154 99,367,665 29 916 .010111661
A 100,013,008 1.0021 99,803,421 35 684 .008593198
A 80,558,012 0.9840 81,867,898 13 398 .003247582
D3 65,647,843 1.0228 64,184,438 10 1,434 .010238620
Random Totals: 440,379,214   444,238,630 106 4,841  
Catg D1 Exception Values: 2,562,716   2,523,046      
Total Test Values (4): 442,941,930   446,761,676      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 22,338,084

Confidence Interval Values (5)

State Lower Limit: 424,423,592 (State Test Value minus Margin of Error Percent)
Local Test Value: 442,941,930 (Within Confidence Interval)
State Upper Limit: 469,099,760 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 506,084,099 (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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