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2011 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 209,400,128 1.0645 196,712,192 22 3,880 .040876813
A 212,923,395 1.0150 209,776,744 18 2,228 .016493234
A 213,242,811 0.9944 214,443,696 17 1,359 .023524077
A 211,552,160 0.9492 222,874,168 12 659 .003148709
B 20,484,195 1.0044 20,394,459 8 38 .006196428
B 21,146,060 1.0220 20,690,861 2 3 .000320887
F1 37,650,778 1.0133 37,156,595 11 263 .029859159
F1 38,666,452 1.0240 37,760,207 9 70 .006968142
F1 33,921,120 0.9143 37,100,645 7 23 .179842210
F1 43,172,460 0.9677 44,613,475 3 5 .000275759
L1 22,390,925 1.0691 20,943,714 10 295 .017737683
L1 29,375,131 0.9290 31,620,163 8 55 .020350202
L1 28,170,925 1.0209 27,594,206 6 12 .008498638
Random Totals: 1,122,096,540   1,121,681,125 133 8,890  
Catg D1 Exception Values: 78,790   96,487      
Catg B Exception Values: 19,085,540   20,589,982      
Catg L1 Exception Values: 19,155,019   19,032,219      
Total Test Values (4): 1,160,415,889   1,161,399,813      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 58,069,991

Confidence Interval Values (5)

State Lower Limit: 1,103,329,822 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,160,415,889 (Within Confidence Interval)
State Upper Limit: 1,219,469,804 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,416,768,984 (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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