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2009 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 695,961,060 0.9521 730,974,751 55 5,516 .006331440
A 873,803,020 0.9871 885,222,389 61 5,221 .004676271
A 800,532,276 0.9650 829,567,125 59 3,313 .006930119
A 855,223,906 0.9568 893,837,694 61 2,071 .012782361
B 210,403,181 0.9611 218,919,135 27 1,306 .008915364
B 203,955,163 0.9904 205,932,111 7 241 .000465820
B 216,430,654 0.9388 230,539,683 5 29 .032612707
B 279,511,678 0.9511 293,882,534 4 12 .006672906
F1 243,716,992 0.9847 247,503,800 8 314 .108023215
F1 249,765,500 1.0919 228,743,933 7 102 .066107375
F1 256,395,210 0.9161 279,876,880 8 48 .016104413
F1 235,383,972 1.1140 211,296,205 5 15 .030526590
L1 76,754,300 1.0276 74,692,779 8 850 .011725113
L1 82,788,869 1.0536 78,577,135 7 180 .002125244
L1 80,502,760 1.0985 73,284,260 6 53 .009880160
L1 84,291,250 1.1539 73,049,008 5 16 .055907902
Random Totals: 5,445,419,791   5,555,899,422 333 19,287  
Catg D1 Exception Values: 2,250,675   1,501,950      
Total Test Values (4): 5,447,670,466   5,557,401,372      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 277,870,069

Confidence Interval Values (5)

State Lower Limit: 5,279,531,303 (State Test Value minus Margin of Error Percent)
Local Test Value: 5,447,670,466 (Within Confidence Interval)
State Upper Limit: 5,835,271,441 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,753,251,755 (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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