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2008 Confidence Interval Detail
021/Brazos
021-901/College Station ISD

Category Summary

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

Stratum
Variance
A 554,274,937 0.9642 574,854,737 46 4,758 .005418968
A 869,394,400 0.9960 872,885,944 63 5,537 .003894851
A 733,893,218 0.9758 752,093,890 56 3,233 .009118276
A 845,577,313 0.9518 888,398,101 59 2,120 .015931376
B 193,526,420 0.9565 202,327,674 25 1,287 .010549160
B 204,218,292 0.8884 229,872,008 17 325 .094117251
B 208,555,190 0.9906 210,534,212 7 28 .001461264
B 205,920,320 0.9730 211,634,450 4 9 .003864307
F1 241,355,235 1.1101 217,417,561 7 321 .038973547
F1 232,863,665 0.8740 266,434,399 7 100 .041836790
F1 278,847,660 0.9096 306,560,752 6 54 .028675090
F1 233,604,140 1.0203 228,956,327 6 14 .005856562
L1 68,452,350 1.1044 61,981,483 7 905 .026521331
L1 70,685,758 0.9758 72,438,776 10 189 .006766457
L1 71,206,452 1.0130 70,292,648 6 58 .000324399
L1 89,917,307 1.0145 88,632,141 7 22 .000111795
Random Totals: 5,102,292,657   5,255,315,103 333 18,960  
Catg D1 Exception Values: 2,004,320   1,487,154      
Total Test Values (4): 5,104,296,977   5,256,802,257      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 262,840,113

Confidence Interval Values (5)

State Lower Limit: 4,993,962,144 (State Test Value minus Margin of Error Percent)
Local Test Value: 5,104,296,977 (Within Confidence Interval)
State Upper Limit: 5,519,642,370 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,409,230,838 (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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