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2008 Confidence Interval Detail
140/Lamb
140-901/Amherst ISD

Category Summary

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

Stratum
Variance
A 1,564,520 0.7902 1,979,904 16 135 .131287957
A 1,647,410 0.9653 1,706,630 15 64 .018318395
A 1,488,920 0.9118 1,632,946 15 31 .011371212
A 1,650,680 1.0471 1,576,430 12 15 .008999908
D3 3,306,174 0.9887 3,343,961 25 623 .013675493
Random Totals: 9,657,704   10,239,871 83 868  
Catg J Exception Values: 3,169,390   3,134,715      
Catg D1 Exception Values: 15,310,050   13,965,542      
Total Test Values (4): 28,137,144   27,340,128      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,367,006

Confidence Interval Values (5)

State Lower Limit: 25,973,122 (State Test Value minus Margin of Error Percent)
Local Test Value: 28,137,144 (Within Confidence Interval)
State Upper Limit: 28,707,134 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 41,295,003 (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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