taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 28,061,578 1.0585 26,510,702 7 497 .227104761
A 31,264,019 0.9143 34,194,486 10 255 .033868778
A 37,075,925 0.9595 38,640,881 13 207 .014864053
A 38,797,769 0.9999 38,801,649 8 124 .039132749
E 17,221,032 0.9718 17,720,757 10 321 .006822339
G1 21,481,438 0.9981 21,522,330 8 42 .005416469
Random Totals: 173,901,761   177,390,805 56 1,446  
Catg D1 Exception Values: 12,397,979   10,545,536      
Catg G1 Exception Values: 18,327,604   18,108,723      
Total Test Values (4): 204,627,344   206,045,064      

Margin of Error

Margin of Error Percent: 5.7759253
Margin of Error Value: 11,901,009

Confidence Interval Values (5)

State Lower Limit: 194,144,055 (State Test Value minus Margin of Error Percent)
Local Test Value: 204,627,344 (Within Confidence Interval)
State Upper Limit: 217,946,073 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 215,821,928 (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