taxes Property Tax Assistance

2017 Confidence Interval Detail

152/Lubbock
152-908/Roosevelt ISD

Category Summary

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

Stratum
Variance
A 36,098,309 0.6913 52,218,008 13 552 .095009847
A 30,112,200 0.8135 37,015,612 16 208 .058327572
A 38,936,992 0.9446 41,220,614 13 188 .012868085
A 45,085,541 1.0196 44,218,852 12 124 .039523896
E 20,463,433 0.9691 21,115,915 10 347 .005590229
F1 2,906,502 0.7583 3,832,918 8 42 .128134658
F1 3,420,001 0.9660 3,540,374 8 23 .021660707
F1 3,286,015 0.9520 3,451,696 7 10 .036679379
G1 21,119,404 1.0473 20,165,572 9 47 .002186341
L1 2,420,925 0.8906 2,718,308 8 41 .055280034
L1 1,603,727 1.0049 1,595,907 5 7 .051005278
Random Totals: 205,453,049   231,093,776 109 1,589  
Catg D1 Exception Values: 10,031,743   8,532,689      
Catg F1 Exception Values: 4,432,820   4,063,099      
Catg L1 Exception Values: 7,218,156   7,739,085      
Total Test Values (4): 227,135,768   251,428,649      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,571,432

Confidence Interval Values (5)

Local Test Value: 227,135,768 (Outside Confidence Interval)
State Lower Limit: 238,857,217 (State Test Value minus Margin of Error Percent)
State Upper Limit: 264,000,081 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 221,322,951 (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