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2011 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 4,224,019 0.9954 4,243,539 10 105 .013222233
A 4,308,461 1.0269 4,195,599 13 63 .017401311
A 4,173,148 0.9762 4,274,890 10 45 .002675176
A 4,857,225 0.9656 5,030,266 10 33 .001330486
D3 4,532,749 0.8732 5,190,963 14 231 .010319966
G1 10,930,625 0.9974 10,959,119 4 8 .001182677
L1 2,796,684 1.0626 2,631,925 11 23 .001121650
Random Totals: 35,822,911   36,526,301 72 508  
Catg D1 Exception Values: 7,320,675   6,491,800      
Catg G1 Exception Values: 24,754,357   24,334,705      
Total Test Values (4): 67,897,943   67,352,806      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,367,640

Confidence Interval Values (5)

State Lower Limit: 63,985,166 (State Test Value minus Margin of Error Percent)
Local Test Value: 67,897,943 (Within Confidence Interval)
State Upper Limit: 70,720,446 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 76,412,608 (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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