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2010 Confidence Interval Detail
021/Brazos
021-902/Bryan ISD

Category Summary

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

Stratum
Variance
A 547,631,970 0.9073 603,584,228 59 7,323 .028578037
A 513,573,810 0.9565 536,930,277 54 4,200 .010950590
A 610,762,530 0.9600 636,210,969 55 3,597 .008985849
A 613,203,160 0.9360 655,131,581 65 1,999 .008984333
B 93,831,760 1.0076 93,124,017 29 834 .020303500
B 83,538,687 0.8880 94,075,098 10 155 .007519288
B 92,193,400 0.9173 100,505,178 5 11 .004492200
B 119,847,560 1.0140 118,192,860 3 6 .010771816
D3 362,768,617 0.9660 375,536,871 22 6,805 .027027349
F1 187,736,617 1.0010 187,549,068 20 766 .010916640
F1 195,115,722 1.0478 186,214,661 10 239 .010948818
F1 170,489,883 1.0959 155,570,657 9 79 .028175733
F1 183,393,752 1.0051 182,463,190 7 30 .018217289
L1 109,553,250 0.9793 111,868,937 10 1,109 .005204595
L1 113,067,020 1.0243 110,384,672 9 172 .001099959
L1 92,546,830 0.9545 96,958,439 9 47 .006532363
L1 91,032,000 0.9246 98,455,548 6 14 .004733719
Random Totals: 4,180,286,568   4,342,756,251 382 27,386  
Catg J Exception Values: 43,940,472   41,411,314      
Catg D1 Exception Values: 22,664,765   16,248,862      
Total Test Values (4): 4,246,891,805   4,400,416,427      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 220,020,821

Confidence Interval Values (5)

State Lower Limit: 4,180,395,606 (State Test Value minus Margin of Error Percent)
Local Test Value: 4,246,891,805 (Within Confidence Interval)
State Upper Limit: 4,620,437,248 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,663,659,176 (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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