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2007 Confidence Interval Detail
152/Lubbock
152-910/Idalou ISD

Category Summary

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

Stratum
Variance
A 18,220,161 0.8579 21,238,094 12 340 .056078991
A 18,260,689 0.9019 20,246,911 12 199 .048602326
A 18,246,226 0.8410 21,695,869 12 145 .151711423
A 18,050,357 1.0749 16,792,592 11 89 .038832035
D3 16,962,869 0.8786 19,306,703 20 891 .073536831
F1 2,599,182 0.8254 3,148,997 6 47 .048409159
F1 2,495,316 0.9312 2,679,678 5 13 .011280795
F1 2,477,877 0.8679 2,855,026 3 4 .008551826
G1 3,014,206 0.9993 3,016,317 4 5 .007142406
L1 11,559,271 0.9751 11,854,447 6 79 .000882957
L1 11,836,006 0.9690 12,214,660 5 12 .012220062
L1 13,095,159 0.9518 13,758,310 2 4 .004181942
Random Totals: 136,817,319   148,807,604 98 1,828  
Catg D1 Exception Values: 25,478,725   16,700,807      
Catg F1 Exception Values: 2,333,130   2,231,372      
Catg G1 Exception Values: 9,461,878   9,545,976      
Catg L1 Exception Values: 17,528,635   17,727,086      
Total Test Values (4): 191,619,687   195,012,845      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,750,642

Confidence Interval Values (5)

State Lower Limit: 185,262,203 (State Test Value minus Margin of Error Percent)
Local Test Value: 191,619,687 (Within Confidence Interval)
State Upper Limit: 204,763,487 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 181,651,062 (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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