taxes Property Tax Assistance

2017 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 539,536,159 0.9475 569,431,302 100 3,344 .017863590
A 565,660,335 0.9641 586,723,716 100 2,339 .012715165
A 576,551,847 0.9783 589,340,537 100 1,600 .010855185
A 594,634,724 0.9854 603,445,021 67 911 .029845206
F1 78,752,241 0.9492 82,966,963 10 238 .016384834
F1 79,841,884 0.9286 85,980,922 10 83 .026049962
F1 88,752,221 1.0593 83,783,839 8 42 .030752497
F1 104,369,481 0.9875 105,690,614 8 15 .004044322
Random Totals: 2,628,098,892   2,707,362,914 403 8,572  
Catg D1 Exception Values: 8,352,233   7,295,387      
Total Test Values (4): 2,636,451,125   2,714,658,301      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 135,732,915

Confidence Interval Values (5)

State Lower Limit: 2,578,925,386 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,636,451,125 (Within Confidence Interval)
State Upper Limit: 2,850,391,216 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,895,022,372 (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, D2, E, 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