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2008 Confidence Interval Detail
102/Harrison
102-903/Waskom ISD

Category Summary

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

Stratum
Variance
A 20,182,960 0.9508 21,227,345 11 479 .013898118
A 20,637,560 1.0212 20,209,127 11 246 .036971554
A 19,481,130 0.9494 20,519,412 10 164 .030268812
A 22,484,590 1.0188 22,069,680 10 122 .014308323
D3 21,038,000 0.9748 21,581,863 21 1,222 .076521182
G1 45,826,491 1.0176 45,033,894 16 99 .003858134
G1 45,377,735 1.0168 44,627,985 15 49 .004192963
G1 45,617,240 0.9926 45,957,324 16 30 .061658685
G1 43,628,363 1.0437 41,801,632 11 14 .010696506
Random Totals: 284,274,069   283,028,262 121 2,425  
Catg J Exception Values: 7,192,765   6,556,762      
Catg D1 Exception Values: 2,903,150   3,144,443      
Total Test Values (4): 294,369,984   292,729,467      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,636,473

Confidence Interval Values (5)

State Lower Limit: 278,092,994 (State Test Value minus Margin of Error Percent)
Local Test Value: 294,369,984 (Within Confidence Interval)
State Upper Limit: 307,365,940 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 443,839,456 (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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