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2006 Confidence Interval Detail
123/Jefferson
123-905/Nederland ISD

Category Summary

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

Stratum
Variance
A 170,663,853 0.8245 206,990,725 20 3,082 .044918848
A 170,626,289 0.9242 184,620,525 13 2,053 .009374679
A 170,636,874 0.8896 191,813,033 10 1,437 .002975185
A 170,589,484 0.9045 188,600,867 9 863 .027707061
F1 38,134,555 0.9458 40,319,893 7 304 .000739641
F1 38,111,525 0.9818 38,818,013 7 119 .000800705
F1 38,715,694 0.9687 39,966,650 6 43 .000897450
F1 36,715,870 0.9712 37,804,644 5 13 .001606209
L1 19,333,273 0.9854 19,619,721 8 330 .005126981
L1 19,318,588 1.0460 18,469,013 6 72 .053044996
L1 19,853,156 0.9205 21,567,796 7 26 .032901236
L1 19,077,215 0.9815 19,436,796 5 12 .014954019
Random Totals: 911,776,376   1,008,027,676 103 8,354  
Catg D1 Exception Values: 142,940   133,583      
Total Test Values (4): 911,919,316   1,008,161,259      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,408,063

Confidence Interval Values (5)

Local Test Value: 911,919,316 (Outside Confidence Interval)
State Lower Limit: 957,753,196 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,058,569,322 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,296,613,649 (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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