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2009 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 1,391,363,880 0.9763 1,425,139,691 44 11,640 .004035163
A 1,349,648,256 0.9777 1,380,431,887 52 7,336 .005212361
A 1,377,636,965 0.9772 1,409,779,948 53 5,237 .004167090
A 1,442,600,590 0.9654 1,494,303,491 50 3,109 .005067107
C 82,458,790 1.0098 81,658,536 26 1,403 .015531441
C 89,572,490 1.0065 88,994,029 14 497 .009438276
C 118,060,470 0.9863 119,700,365 7 158 .000408201
C 93,794,080 0.9887 94,866,067 6 31 .000325984
D3 239,598,291 0.9863 242,926,382 11 5,153 .075074668
F1 234,534,852 0.9773 239,982,454 9 781 .032015504
F1 234,558,187 1.0167 230,705,407 7 189 .049392840
F1 232,401,146 1.0408 223,290,878 6 72 .016278249
F1 209,755,152 0.9736 215,442,843 5 23 .005649482
L1 65,075,601 1.0391 62,626,890 7 1,295 .030651279
L1 72,106,564 1.1247 64,111,820 8 208 .006603325
L1 81,900,490 0.9991 81,974,267 7 50 .008270123
L1 66,012,920 1.0425 63,321,746 5 12 .001093740
Random Totals: 7,381,078,724   7,519,256,701 317 37,194  
Catg D1 Exception Values: 30,272,000   27,441,019      
Total Test Values (4): 7,411,350,724   7,546,697,720      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 377,334,886

Confidence Interval Values (5)

State Lower Limit: 7,169,362,834 (State Test Value minus Margin of Error Percent)
Local Test Value: 7,411,350,724 (Within Confidence Interval)
State Upper Limit: 7,924,032,606 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 10,085,153,421 (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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