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2009 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 7,282,480 1.0022 7,266,494 15 251 .016534737
A 9,064,460 0.9484 9,557,634 15 167 .037792534
A 8,262,130 0.8848 9,337,850 15 106 .021980945
A 9,329,630 1.0131 9,208,992 15 76 .006142007
D3 51,467,976 0.9949 51,731,808 22 3,335 .048757614
L1 4,558,520 1.0206 4,466,510 6 23 .011145003
L1 6,176,920 0.9431 6,549,592 3 7 .011639099
Random Totals: 96,142,116   98,118,880 91 3,965  
Catg J Exception Values: 40,472,354   41,023,803      
Catg D1 Exception Values: 12,728,171   11,716,473      
Total Test Values (4): 149,342,641   150,859,156      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 7,542,958

Confidence Interval Values (5)

State Lower Limit: 143,316,198 (State Test Value minus Margin of Error Percent)
Local Test Value: 149,342,641 (Within Confidence Interval)
State Upper Limit: 158,402,114 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 675,419,005 (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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