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2010 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 8,594,980 0.9833 8,740,954 11 277 .004307748
A 8,637,580 0.9657 8,944,372 9 151 .026125564
A 8,975,370 0.9666 9,285,506 9 111 .002680448
A 8,505,460 1.0015 8,492,721 9 65 .016554619
D3 55,137,366 0.9995 55,164,948 20 3,358 .133573132
L1 2,901,240 0.9948 2,916,405 8 46 .002092452
L1 2,367,050 1.0054 2,354,337 4 6 .023531434
L1 4,014,780 1.0698 3,752,832 3 6 .003003004
Random Totals: 99,133,826   99,652,075 73 4,020  
Catg J Exception Values: 37,170,183   42,575,832      
Catg D1 Exception Values: 12,162,687   10,399,104      
Catg L1 Exception Values: 1,081,130   1,071,999      
Total Test Values (4): 149,547,826   153,699,010      

Margin of Error

Margin of Error Percent: 5.8925318
Margin of Error Value: 9,056,763

Confidence Interval Values (5)

State Lower Limit: 144,642,247 (State Test Value minus Margin of Error Percent)
Local Test Value: 149,547,826 (Within Confidence Interval)
State Upper Limit: 162,755,773 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 775,045,444 (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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