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2006 Confidence Interval Detail
152/Lubbock
152-906/Lubbock-Cooper ISD

Category Summary

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

Stratum
Variance
A 167,589,166 0.9478 176,819,124 38 1,583 .010974373
A 167,570,716 0.9546 175,540,243 30 903 .008549606
A 167,619,683 0.9554 175,444,508 28 638 .004682150
A 167,296,192 1.0019 166,978,932 23 389 .009011782
C 11,977,491 0.6505 18,412,746 16 648 .001393526
C 11,531,459 0.7503 15,369,131 7 441 .055480338
C 10,334,228 0.7114 14,526,607 7 250 .027686358
C 11,162,488 0.8764 12,736,750 6 47 .000486744
D3 31,317,248 0.9183 34,103,504 12 1,312 .036356375
F1 16,050,028 0.7844 20,461,535 7 163 .051217553
F1 16,311,358 0.8341 19,555,638 6 50 .017204867
F1 17,085,125 0.8631 19,795,070 5 22 .035817403
F1 14,739,503 0.9837 14,983,738 3 6 .002194996
L1 10,924,425 0.9775 11,175,882 7 210 .005024870
L1 11,105,468 0.9746 11,394,898 6 44 .003215197
L1 11,690,489 1.0034 11,650,876 4 12 .000304642
L1 9,848,485 0.9632 10,224,756 2 3 .000284337
Random Totals: 854,153,552   909,173,938 207 6,721  
Catg D1 Exception Values: 15,114,060   9,331,926      
Total Test Values (4): 869,267,612   918,505,864      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 45,925,293

Confidence Interval Values (5)

Local Test Value: 869,267,612 (Outside Confidence Interval)
State Lower Limit: 872,580,571 (State Test Value minus Margin of Error Percent)
State Upper Limit: 964,431,157 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 898,672,047 (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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