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2008 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 3,934,289,803 0.9763 4,029,795,967 50 33,487 .007205108
A 4,036,306,065 0.9493 4,251,876,188 52 24,571 .003043735
A 4,228,233,306 0.9457 4,471,009,100 48 17,794 .005694362
A 5,131,246,145 0.9424 5,444,870,697 50 11,614 .004514809
B 91,074,815 1.0530 86,490,802 8 298 .020679859
B 106,726,950 1.0392 102,701,068 4 8 .006538275
B 87,028,980 0.9968 87,308,367 3 5 .003580552
B 149,462,350 0.8932 167,333,576 2 6 .020944246
C 105,977,570 0.9776 108,405,861 19 1,673 .003824589
C 121,747,650 0.9518 127,913,059 16 314 .001873967
C 132,456,370 0.9746 135,908,444 7 122 .005622688
C 139,746,650 0.8415 166,068,509 6 45 .015548420
F1 520,677,250 0.8971 580,400,457 16 628 .070514984
F1 606,396,130 0.9984 607,367,919 9 268 .017086619
F1 740,501,290 0.7106 1,042,078,933 7 127 .201465171
F1 801,865,290 0.9166 874,825,758 8 38 .009590711
L1 161,362,619 0.9818 164,353,859 7 1,952 .002627795
L1 146,864,080 0.9731 150,923,934 7 338 .017999025
L1 187,890,497 0.9793 191,862,041 8 128 .002499484
L1 178,349,026 1.2205 146,127,838 6 34 .066161594
Random Totals: 21,608,202,836   22,937,622,377 333 93,450  
Catg D1 Exception Values: 5,441,520   5,672,992      
Total Test Values (4): 21,613,644,356   22,943,295,369      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,147,164,768

Confidence Interval Values (5)

Local Test Value: 21,613,644,356 (Outside Confidence Interval)
State Lower Limit: 21,796,130,601 (State Test Value minus Margin of Error Percent)
State Upper Limit: 24,090,460,137 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 22,699,614,532 (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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