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2008 Confidence Interval Detail
152/Lubbock
095-901/Abernathy ISD

Category Summary

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

Stratum
Variance
A 17,196,513 0.9526 18,052,187 10 321 .058617603
D3 4,102,414 0.9511 4,313,336 11 277 .000784563
Random Totals: 21,298,927   22,365,523 21 598  
Catg D1 Exception Values: 7,821,175   5,696,684      
Catg G1 Exception Values: 41,592,632   43,071,412      
Total Test Values (4): 70,712,734   71,133,619      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 3,556,681

Confidence Interval Values (5)

State Lower Limit: 67,576,938 (State Test Value minus Margin of Error Percent)
Local Test Value: 70,712,734 (Within Confidence Interval)
State Upper Limit: 74,690,300 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 78,099,070 (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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