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2006 Confidence Interval Detail
140/Lamb
140-904/Littlefield ISD

Category Summary

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

Stratum
Variance
A 19,399,288 0.9397 20,644,129 24 1,041 .132720267
A 19,402,021 0.9241 20,995,586 16 439 .034931413
A 19,520,051 1.0216 19,107,333 15 259 .011525211
A 19,213,816 0.9726 19,755,106 15 161 .000832974
D3 8,948,170 0.9398 9,521,356 12 1,537 .089154763
F1 4,671,254 1.0239 4,562,217 7 171 .019512839
F1 4,677,125 1.0364 4,512,857 6 39 .039254003
F1 4,862,327 0.9979 4,872,559 4 12 .022559678
F1 4,257,933 1.0176 4,184,290 3 4 .004805482
G1 2,453,790 0.9981 2,458,461 6 11 .002084478
L1 4,273,475 0.9426 4,533,710 6 89 .032795878
L1 4,245,681 0.9989 4,250,356 5 19 .001155915
L1 4,083,107 0.9747 4,189,091 5 8 .002047883
Random Totals: 120,008,038   123,587,051 124 3,790  
Catg J Exception Values: 9,924,920   9,681,429      
Catg D1 Exception Values: 13,824,417   17,343,600      
Catg G1 Exception Values: 12,735,070   12,799,023      
Catg L1 Exception Values: 3,720,978   3,828,815      
Total Test Values (4): 160,213,423   167,239,918      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 8,361,996

Confidence Interval Values (5)

State Lower Limit: 158,877,922 (State Test Value minus Margin of Error Percent)
Local Test Value: 160,213,423 (Within Confidence Interval)
State Upper Limit: 175,601,914 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 176,551,222 (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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