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2011 Confidence Interval Detail
061/Denton
061-908/Sanger ISD

Category Summary

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

Stratum
Variance
A 90,501,626 0.9571 94,558,172 18 1,164 .013293042
A 93,677,136 0.9958 94,072,239 21 803 .004264441
A 99,145,814 0.9582 103,470,898 20 595 .008083596
A 84,726,040 0.9571 88,523,707 12 339 .005607461
D3 127,989,839 1.0913 117,281,993 16 3,074 .044614102
F1 14,246,749 1.0095 14,112,679 9 87 .003870931
F1 12,809,879 0.8750 14,639,862 10 32 .069879858
F1 14,825,294 0.9818 15,100,116 7 23 .010455401
F1 14,863,081 0.9156 16,233,160 8 13 .026017896
Random Totals: 552,785,458   557,992,826 121 6,130  
Catg D1 Exception Values: 4,831,013   4,321,272      
Catg F1 Exception Values: 28,200,000   30,000,000      
Total Test Values (4): 585,816,471   592,314,098      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 29,615,705

Confidence Interval Values (5)

State Lower Limit: 562,698,393 (State Test Value minus Margin of Error Percent)
Local Test Value: 585,816,471 (Within Confidence Interval)
State Upper Limit: 621,929,803 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 701,082,775 (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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