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2008 Confidence Interval Detail
079/Fort Bend
079-910/Stafford MSD

Category Summary

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

Stratum
Variance
A 86,110,250 0.9376 91,841,137 15 787 .002944480
A 116,182,288 0.9701 119,763,208 11 835 .002747285
A 102,607,390 0.9855 104,117,088 13 603 .004302329
A 155,208,200 0.9574 162,114,268 39 721 .001775340
B 154,686,960 0.9555 161,891,115 8 26 .004079253
F1 148,758,760 0.8810 168,852,168 8 235 .045267031
F1 141,235,090 0.7920 178,327,134 8 76 .105516838
F1 137,427,380 1.0102 136,039,774 6 35 .000748288
F1 263,361,960 1.0203 258,122,082 4 21 .004828747
L1 59,206,775 1.0384 57,017,310 8 408 .026201670
L1 72,578,530 1.0349 70,130,960 7 99 .009808997
L1 99,932,130 1.0645 93,877,060 7 37 .060870692
L1 75,285,310 1.0000 75,285,310 4 9
Random Totals: 1,612,581,023   1,677,378,614 138 3,892  
Catg D1 Exception Values: 53,180   58,381      
Total Test Values (4): 1,612,634,203   1,677,436,995      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 83,871,850

Confidence Interval Values (5)

State Lower Limit: 1,593,565,145 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,612,634,203 (Within Confidence Interval)
State Upper Limit: 1,761,308,845 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,095,246,155 (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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