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2011 Confidence Interval Detail
061/Denton
061-907/Aubrey ISD

Category Summary

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

Stratum
Variance
A 83,999,870 0.9789 85,810,471 16 799 .002862994
A 86,191,010 1.0217 84,360,390 24 636 .003384882
A 96,349,034 1.0084 95,546,444 22 577 .005490055
A 88,614,563 0.9665 91,686,046 12 293 .003602504
D3 124,147,128 1.1632 106,728,961 15 1,836 .178133321
F1 8,592,446 1.0036 8,561,624 10 50 .007051411
F1 7,546,122 0.8626 8,748,113 9 24 .060745851
F1 6,966,153 0.9475 7,352,140 7 15 .002952691
Random Totals: 502,406,326   488,794,189 115 4,230  
Catg J Exception Values: 6,093,291   6,048,114      
Catg D1 Exception Values: 1,975,113   1,441,546      
Catg F1 Exception Values: 7,880,908   7,810,683      
Total Test Values (4): 518,355,638   504,094,532      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 25,204,727

Confidence Interval Values (5)

State Lower Limit: 478,889,805 (State Test Value minus Margin of Error Percent)
Local Test Value: 518,355,638 (Within Confidence Interval)
State Upper Limit: 529,299,259 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 560,049,570 (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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