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2008 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 218,493,534 0.9644 226,559,036 9 3,713 .015780825
A 220,489,422 0.9982 220,887,019 9 2,283 .016042724
A 235,470,364 0.9381 251,007,743 17 1,498 .012712726
A 245,970,650 0.9714 253,212,528 15 733 .003844377
F1 162,895,180 0.9587 169,912,569 10 657 .006921663
L1 23,317,042 1.1548 20,191,411 7 298 .079393023
L1 23,585,468 1.1163 21,128,252 6 49 .017051226
L1 25,822,839 0.9560 27,011,338 6 11 .007412247
Random Totals: 1,156,044,499   1,189,909,896 79 9,242  
Catg D1 Exception Values: 75,220   58,034      
Catg L1 Exception Values: 21,081,617   25,804,269      
Total Test Values (4): 1,177,201,336   1,215,772,199      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 60,788,610

Confidence Interval Values (5)

State Lower Limit: 1,154,983,589 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,177,201,336 (Within Confidence Interval)
State Upper Limit: 1,276,560,809 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,542,514,477 (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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