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2007 Confidence Interval Detail
084/Galveston
084-904/La Marque ISD

Category Summary

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

Stratum
Variance
A 224,339,133 1.0458 214,514,375 25 3,784 .017912339
A 224,343,943 1.0153 220,963,206 20 2,311 .009996641
A 224,359,386 0.9875 227,199,378 14 1,419 .008344135
A 224,092,608 1.0053 222,911,179 13 672 .002985807
F1 36,440,300 0.9708 37,536,362 10 273 .020306571
F1 36,938,864 0.8795 41,999,845 8 73 .031907113
F1 36,549,013 0.9763 37,436,252 5 23 .027415737
L1 23,116,252 0.9681 23,877,959 8 305 .006133790
L1 23,065,378 0.9847 23,423,762 6 56 .003905169
L1 25,776,817 0.9853 26,161,389 4 11 .004504494
Random Totals: 1,079,021,694   1,076,023,707 113 8,927  
Catg D1 Exception Values: 69,450   48,158      
Catg F1 Exception Values: 38,078,160   42,577,028      
Catg L1 Exception Values: 25,333,003   25,397,469      
Total Test Values (4): 1,142,502,307   1,144,046,362      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 57,202,318

Confidence Interval Values (5)

State Lower Limit: 1,086,844,044 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,142,502,307 (Within Confidence Interval)
State Upper Limit: 1,201,248,680 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,466,538,126 (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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