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2007 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 485,648,231 0.8911 544,998,576 50 7,538 .018133910
A 485,671,805 0.9453 513,775,315 52 4,633 .014422000
A 485,771,225 0.9537 509,354,331 56 3,346 .011241353
A 485,498,145 0.9227 526,171,177 58 1,976 .009615189
B 76,745,638 0.9805 78,271,941 35 725 .015628924
B 78,167,838 0.9397 83,183,822 24 294 .032511462
B 75,889,521 1.0223 74,234,101 5 15 .000087799
B 75,848,485 0.9988 75,939,613 3 5 .000573844
F1 163,968,987 0.9710 168,866,104 21 749 .045315527
F1 164,157,176 1.0603 154,821,443 10 220 .019207366
F1 164,795,950 1.0337 159,423,382 7 75 .055308865
F1 162,712,090 1.0007 162,598,271 5 24 .019853604
L1 84,606,751 0.9545 88,639,865 7 1,201 .051440983
L1 84,217,658 1.0114 83,268,398 9 203 .002011273
L1 86,357,760 1.1760 73,433,469 7 67 .097539660
L1 82,462,689 1.0103 81,621,983 5 18 .000885184
Random Totals: 3,242,519,949   3,378,601,791 354 21,089  
Catg D1 Exception Values: 19,679,015   15,554,185      
Total Test Values (4): 3,262,198,964   3,394,155,976      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 169,707,799

Confidence Interval Values (5)

State Lower Limit: 3,224,448,177 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,262,198,964 (Within Confidence Interval)
State Upper Limit: 3,563,863,775 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,946,604,312 (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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