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2008 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 201,181,381 1.0404 193,369,263 37 3,024 .023587088
A 188,962,645 1.0716 176,336,921 38 1,882 .031824143
A 204,982,625 0.9924 206,552,423 37 1,516 .004586427
A 217,022,982 1.0002 216,979,586 36 909 .004391272
C 21,290,290 1.0849 19,624,196 20 1,906 .015299649
C 21,804,118 1.0095 21,598,928 21 640 .007225451
C 26,592,210 1.0565 25,170,099 18 511 .014393079
C 15,537,860 1.0374 14,977,694 8 195 .005190898
D3 91,246,580 0.9892 92,242,802 19 4,110 .099460587
F1 31,142,360 0.9030 34,487,663 7 281 .033701196
F1 34,159,640 0.8225 41,531,477 7 110 .053271234
F1 29,948,560 0.6486 46,174,160 6 37 .176926609
F1 34,407,620 0.9580 35,916,096 4 14 .036680423
L1 20,738,560 1.0160 20,411,969 7 329 .001926128
L1 22,601,240 1.0262 22,024,206 6 62 .002950715
L1 20,543,630 0.9986 20,572,431 5 16 .001153208
L1 15,218,420 0.9392 16,203,599 3 4 .008322719
Random Totals: 1,197,380,721   1,204,173,513 279 15,546  
Catg J Exception Values: 52,477,003   53,892,978      
Catg D1 Exception Values: 15,482,354   17,016,341      
Total Test Values (4): 1,265,340,078   1,275,082,832      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 63,754,142

Confidence Interval Values (5)

State Lower Limit: 1,211,328,690 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,265,340,078 (Within Confidence Interval)
State Upper Limit: 1,338,836,974 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,628,750,431 (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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