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2011 Confidence Interval Detail
001/Anderson
001-908/Westwood ISD

Category Summary

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

Stratum
Variance
A 35,911,947 0.9703 37,011,179 12 685 .013122752
A 35,930,070 0.9916 36,234,439 10 478 .002160694
A 34,928,266 0.9460 36,922,057 10 381 .010776350
A 38,919,313 1.0086 38,587,461 11 273 .003537196
D3 65,058,935 0.9772 66,576,888 16 2,222 .054560955
F1 5,142,907 0.7185 7,157,839 9 61 .073399026
F1 5,210,073 0.7763 6,711,417 8 28 .057209107
F1 5,951,488 0.8252 7,212,176 6 15 .019745802
F1 4,042,521 0.8688 4,652,994 4 5 .047517412
L1 7,682,661 1.1118 6,910,111 9 81 .137375166
L1 8,040,969 0.9673 8,312,797 5 13 .237906359
L1 4,553,671 1.3035 3,493,418 3 3 .005578061
Random Totals: 251,372,821   259,782,776 103 4,245  
Catg D1 Exception Values: 3,936,306   3,623,680      
Catg L1 Exception Values: 3,686,558   3,882,527      
Total Test Values (4): 258,995,685   267,288,983      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,364,449

Confidence Interval Values (5)

State Lower Limit: 253,924,534 (State Test Value minus Margin of Error Percent)
Local Test Value: 258,995,685 (Within Confidence Interval)
State Upper Limit: 280,653,432 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 440,644,644 (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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