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2008 Confidence Interval Detail
079/Fort Bend
079-901/Lamar CISD

Category Summary

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

Stratum
Variance
A 1,182,744,270 0.9589 1,233,438,596 49 10,356 .004673239
A 1,183,232,701 0.9675 1,222,979,536 50 6,783 .002965966
A 1,330,712,455 0.9601 1,386,014,431 50 5,515 .002296315
A 1,519,689,375 0.9387 1,618,929,770 51 3,509 .003729946
C 67,151,050 0.9509 70,618,414 35 1,396 .034059341
C 70,909,080 0.9715 72,989,274 45 567 .021051186
C 79,445,770 0.6520 121,849,340 9 181 .750521793
C 109,747,690 0.7643 143,592,424 6 49 .114281966
D3 245,906,092 0.8801 279,406,990 24 5,061 .131777762
F1 156,951,305 0.8972 174,934,580 10 690 .023377605
F1 158,588,172 0.8188 193,683,649 8 204 .348483664
F1 210,622,262 0.9623 218,873,804 6 112 .024184417
F1 336,618,565 0.9204 365,730,731 6 48 .023431929
L1 54,209,555 1.0450 51,875,172 7 892 .002092198
L1 69,576,952 0.9944 69,968,777 7 234 .001357732
L1 84,432,579 1.0173 82,996,735 7 51 .021603859
L1 61,785,370 0.9897 62,428,382 4 9 .002822226
Random Totals: 6,922,323,243   7,370,310,605 374 35,657  
Catg D1 Exception Values: 30,020,970   34,313,487      
Total Test Values (4): 6,952,344,213   7,404,624,092      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 370,231,205

Confidence Interval Values (5)

Local Test Value: 6,952,344,213 (Outside Confidence Interval)
State Lower Limit: 7,034,392,887 (State Test Value minus Margin of Error Percent)
State Upper Limit: 7,774,855,297 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 9,739,397,748 (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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