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2008 Confidence Interval Detail
169/Montague
169-901/Bowie ISD

Category Summary

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

Stratum
Variance
A 48,091,210 1.0362 46,411,127 20 1,132 .065193032
A 48,658,020 0.9626 50,548,535 20 657 .015591604
A 52,029,190 1.0151 51,255,236 15 511 .025695376
A 60,558,250 1.0248 59,092,750 17 332 .023140583
D3 148,127,290 1.0128 146,255,223 28 4,186 .015555091
F1 10,688,240 0.9455 11,304,326 10 189 .036116949
F1 11,635,400 0.9816 11,853,504 7 69 .006660330
F1 10,675,530 0.8606 12,404,752 6 23 .041513933
F1 13,371,070 1.0230 13,070,450 4 7 .004174685
G1 8,831,020 0.9348 9,446,962 6 66 .043931872
G1 8,390,590 0.8702 9,642,140 5 18 .060564483
G1 9,465,070 1.0215 9,265,854 4 9 .007217192
Random Totals: 430,520,880   430,550,859 142 7,199  
Catg J Exception Values: 19,529,019   20,003,646      
Catg D1 Exception Values: 8,467,950   7,146,769      
Catg G1 Exception Values: 7,744,740   7,508,495      
Total Test Values (4): 466,262,589   465,209,769      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 23,260,488

Confidence Interval Values (5)

State Lower Limit: 441,949,281 (State Test Value minus Margin of Error Percent)
Local Test Value: 466,262,589 (Within Confidence Interval)
State Upper Limit: 488,470,257 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 485,998,987 (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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