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2008 Confidence Interval Detail
152/Lubbock
054-902/Lorenzo ISD

Category Summary

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

Stratum
Variance
A 1,092,574 0.9831 1,111,356 10 18 .014063858
D3 2,145,814 0.9531 2,251,405 10 187 .000254976
Random Totals: 3,238,388   3,362,761 20 205  
Catg J Exception Values: 403,200   343,951      
Catg D1 Exception Values: 7,571,014   5,331,774      
Total Test Values (4): 11,212,602   9,038,486      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 451,924

Confidence Interval Values (5)

State Lower Limit: 8,586,562 (State Test Value minus Margin of Error Percent)
State Upper Limit: 9,490,410 (State Test Value plus Margin of Error Percent)
Local Test Value: 11,212,602 (Outside Confidence Interval)
Value Assigned (6): 13,190,139 (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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