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2009 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 51,974,150 0.9533 54,520,245 23 1,162 .074863782
A 52,167,410 0.9992 52,209,177 20 669 .009576435
A 52,903,320 0.9397 56,298,095 14 488 .018795886
A 56,466,960 0.9954 56,727,908 12 284 .010118645
D3 152,146,200 1.0818 140,641,708 25 4,062 .229909734
F1 11,807,490 1.0766 10,967,388 7 196 .002679339
F1 12,224,580 0.9896 12,353,052 7 67 .009122064
F1 12,438,960 0.9882 12,587,492 5 23 .002431973
G1 7,738,960 0.9474 8,168,630 7 71 .057530458
G1 7,691,540 1.0650 7,222,103 6 22 .013654916
G1 7,614,720 0.9999 7,615,482 4 10 .002425246
G1 7,563,360 1.0941 6,912,860 3 4 .001740967
Random Totals: 432,737,650   426,224,140 133 7,058  
Catg J Exception Values: 20,061,053   21,031,688      
Catg D1 Exception Values: 8,447,160   7,472,143      
Catg F1 Exception Values: 11,116,300   11,268,177      
Total Test Values (4): 472,362,163   465,996,148      

Margin of Error

Margin of Error Percent: 5.9361092
Margin of Error Value: 27,662,040

Confidence Interval Values (5)

State Lower Limit: 438,334,108 (State Test Value minus Margin of Error Percent)
Local Test Value: 472,362,163 (Within Confidence Interval)
State Upper Limit: 493,658,188 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 541,434,685 (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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