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2007 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 1,612,934 0.9110 1,770,509 9 142 .111449374
A 1,604,818 0.8821 1,819,315 10 63 .058318895
A 1,587,211 0.7781 2,039,855 8 33 .050473240
A 1,593,951 0.9947 1,602,444 6 14 .026371028
D3 2,938,231 0.9087 3,233,444 10 625 .017748941
Random Totals: 9,337,145   10,465,567 43 877  
Catg J Exception Values: 3,056,410   3,216,349      
Catg D1 Exception Values: 11,216,752   10,163,665      
Total Test Values (4): 23,610,307   23,845,581      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,192,279

Confidence Interval Values (5)

State Lower Limit: 22,653,302 (State Test Value minus Margin of Error Percent)
Local Test Value: 23,610,307 (Within Confidence Interval)
State Upper Limit: 25,037,860 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 36,130,237 (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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