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2007 Confidence Interval Detail
020/Brazoria
020-904/Danbury ISD

Category Summary

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

Stratum
Variance
A 22,508,436 0.8753 25,715,110 13 302 .057510255
A 22,600,730 0.9780 23,109,131 13 210 .027450147
A 22,699,689 0.9911 22,903,530 13 156 .006471125
A 22,190,865 0.9985 22,224,201 14 97 .002508909
D3 28,941,111 0.8923 32,434,283 25 1,043 .087322809
F1 2,206,226 1.0869 2,029,833 5 16 .134814793
F1 1,923,420 0.8011 2,400,974 4 6 .063167142
F1 2,207,809 0.9725 2,270,241 2 3 .007945432
G1 6,688,980 0.9604 6,964,786 12 26 .448203437
L1 1,416,624 0.9847 1,438,635 6 20 .002902088
L1 3,730,273 0.9623 3,876,414 6 8 .005135066
Random Totals: 137,114,163   145,367,138 113 1,887  
Catg J Exception Values: 6,062,180   5,903,300      
Catg D1 Exception Values: 3,483,641   3,654,229      
Catg F1 Exception Values: 5,065,250   5,475,339      
Catg G1 Exception Values: 2,833,300   2,820,201      
Catg L1 Exception Values: 5,410,660   5,668,270      
Total Test Values (4): 159,969,194   168,888,477      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 8,444,424

Confidence Interval Values (5)

Local Test Value: 159,969,194 (Outside Confidence Interval)
State Lower Limit: 160,444,053 (State Test Value minus Margin of Error Percent)
State Upper Limit: 177,332,901 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 158,894,603 (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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