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2010 Confidence Interval Detail
043/Collin
043-902/Anna ISD

Category Summary

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

Stratum
Variance
A 120,292,662 0.9609 125,187,493 53 1,244 .005914862
A 74,315,959 0.9923 74,892,632 48 626 .003608647
A 83,208,262 1.0021 83,033,891 26 604 .004720392
A 74,166,307 0.9876 75,097,516 10 378 .002074513
D3 82,815,716 0.9685 85,509,258 17 1,802 .016192993
F1 13,864,473 0.7983 17,367,497 7 26 .225167595
F1 7,784,738 0.9900 7,863,372 4 4 .001102005
F1 5,070,458 0.9861 5,141,931 2 2 .017591593
Random Totals: 461,518,575   474,093,590 167 4,686  
Catg J Exception Values: 8,072,725   9,442,119      
Catg D1 Exception Values: 4,024,567   3,894,638      
Catg F1 Exception Values: 8,117,357   7,935,475      
Total Test Values (4): 481,733,224   495,365,822      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,768,291

Confidence Interval Values (5)

State Lower Limit: 470,597,531 (State Test Value minus Margin of Error Percent)
Local Test Value: 481,733,224 (Within Confidence Interval)
State Upper Limit: 520,134,113 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 504,279,072 (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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