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2007 Confidence Interval Detail
139/Lamar
139-905/Chisum ISD

Category Summary

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

Stratum
Variance
A 6,742,019 0.9994 6,746,067 8 257 .000521647
A 6,776,232 1.0249 6,611,603 10 146 .003076535
A 6,735,104 0.9738 6,916,311 8 101 .003930370
A 6,709,721 0.9934 6,754,299 7 68 .009913792
D3 37,473,437 0.9670 38,752,262 20 3,460 .016583755
L1 3,326,686 1.0891 3,054,528 6 41 .014693274
L1 3,641,189 1.0442 3,487,061 4 8 .021483678
L1 3,937,491 0.9927 3,966,446 2 3 .000052706
Random Totals: 75,341,879   76,288,577 65 4,084  
Catg J Exception Values: 34,183,462   34,341,604      
Catg D1 Exception Values: 13,751,591   14,132,816      
Catg L1 Exception Values: 1,343,510   1,342,590      
Total Test Values (4): 124,620,442   126,105,587      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,305,279

Confidence Interval Values (5)

State Lower Limit: 119,800,308 (State Test Value minus Margin of Error Percent)
Local Test Value: 124,620,442 (Within Confidence Interval)
State Upper Limit: 132,410,866 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 543,854,954 (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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