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2006 Confidence Interval Detail
079/Fort Bend
079-907/Fort Bend ISD

Category Summary

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

Stratum
Variance
A 3,636,187,437 0.9689 3,752,902,711 49 30,421 .006558142
A 3,635,638,091 0.9784 3,715,901,565 50 21,780 .003602222
A 3,635,782,531 0.9894 3,674,734,719 50 15,440 .004131482
A 3,635,804,861 0.9513 3,821,932,998 50 8,464 .005641141
B 74,785,523 1.0420 71,771,135 14 270 .007920407
B 74,029,577 0.9302 79,584,581 4 7 .016034370
B 77,357,374 1.0293 75,155,323 2 5 .003068027
B 64,536,594 0.9192 70,209,523 2 3 .032838791
C 89,453,422 0.7655 116,856,201 7 1,330 .006765676
C 89,498,221 0.9645 92,792,349 8 274 .005069660
C 89,639,768 1.0138 88,419,578 7 99 .000925530
C 88,569,620 0.9615 92,116,089 7 35 .007201119
F1 466,331,360 0.9504 490,668,519 8 520 .018680216
F1 467,834,126 1.0270 455,534,689 8 169 .003546297
F1 473,209,967 1.0022 472,171,190 7 62 .016226271
F1 456,167,068 0.9970 457,539,687 5 16 .000513101
L1 148,657,091 1.0672 139,296,375 7 1,125 .018227580
L1 147,469,051 1.0448 141,145,723 7 177 .002173888
L1 150,317,951 0.9700 154,966,960 6 58 .002321836
L1 145,775,240 1.0039 145,208,925 5 20 .003511347
Random Totals: 17,647,044,873   18,108,908,840 303 80,275  
Catg D1 Exception Values: 5,912,540   6,078,185      
Total Test Values (4): 17,652,957,413   18,114,987,025      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 905,749,351

Confidence Interval Values (5)

State Lower Limit: 17,209,237,674 (State Test Value minus Margin of Error Percent)
Local Test Value: 17,652,957,413 (Within Confidence Interval)
State Upper Limit: 19,020,736,376 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 18,359,516,360 (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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