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2007 Confidence Interval Detail
020/Brazoria
020-902/Angleton ISD

Category Summary

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

Stratum
Variance
A 195,935,211 1.0295 190,320,749 25 2,894 .011800897
A 195,864,182 1.0117 193,599,073 24 1,926 .019557704
A 195,909,399 0.9881 198,268,798 26 1,446 .002592498
A 195,834,263 1.0083 194,222,219 24 854 .008283207
C 18,982,628 1.1217 16,923,088 7 1,880 .094421390
C 18,977,918 1.0703 17,731,401 7 603 .046492990
C 18,961,321 1.0918 17,367,028 12 324 .022393822
C 18,908,263 1.0724 17,631,726 10 211 .020076824
D3 84,927,000 0.9767 86,953,005 15 4,060 .006964860
F1 31,225,521 1.0009 31,197,443 8 284 .050129601
F1 31,575,017 0.8911 35,433,753 7 97 .060083766
F1 30,665,541 0.8506 36,051,659 6 36 .015190435
F1 31,091,239 0.9618 32,326,096 5 11 .016078099
L1 20,492,905 1.0286 19,923,104 7 310 .006818421
L1 20,578,187 1.0034 20,508,458 6 60 .006233873
L1 20,023,121 0.7925 25,265,768 5 16 .052814401
Random Totals: 1,129,951,716   1,133,723,368 194 15,012  
Catg J Exception Values: 44,039,754   42,431,368      
Catg D1 Exception Values: 15,723,443   16,655,423      
Catg L1 Exception Values: 12,475,030   13,800,752      
Total Test Values (4): 1,202,189,943   1,206,610,911      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 60,330,546

Confidence Interval Values (5)

State Lower Limit: 1,146,280,365 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,202,189,943 (Within Confidence Interval)
State Upper Limit: 1,266,941,457 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,511,879,939 (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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