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2008 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 465,666,285 0.9460 492,247,659 48 6,692 .024457231
A 515,862,310 0.9924 519,812,888 52 4,584 .010777574
A 551,341,161 0.9995 551,616,969 59 3,537 .006025820
A 604,635,530 0.9508 635,922,939 60 2,216 .006677072
B 78,742,210 0.9978 78,915,825 7 765 .005231866
B 82,471,552 0.8417 97,982,122 11 279 .095909276
B 70,669,257 0.9459 74,711,129 5 13 .005662628
B 117,952,890 0.9815 120,176,149 3 8 .002832568
D3 335,685,698 0.9100 368,885,382 12 6,532 .029567993
F1 166,972,912 0.9531 175,189,290 24 747 .073729356
F1 171,292,203 0.9730 176,045,430 10 227 .066372881
F1 175,243,053 0.9995 175,330,718 6 84 .006197800
F1 162,588,255 0.9612 169,151,326 5 26 .014173873
L1 83,182,409 1.0675 77,922,631 10 1,185 .053314899
L1 89,551,495 0.9737 91,970,314 7 211 .018224799
L1 105,854,597 1.0419 101,597,655 6 78 .005875778
L1 123,862,854 1.0026 123,541,646 5 20 .001838927
Random Totals: 3,901,574,671   4,031,020,072 330 27,204  
Catg D1 Exception Values: 19,170,031   16,071,697      
Total Test Values (4): 3,920,744,702   4,047,091,769      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 202,354,588

Confidence Interval Values (5)

State Lower Limit: 3,844,737,181 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,920,744,702 (Within Confidence Interval)
State Upper Limit: 4,249,446,357 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,321,017,413 (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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