taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 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 30,738,060 0.8420 36,506,010 10 591 .081863788
A 30,944,388 0.9717 31,845,619 11 266 .024517883
A 32,715,266 0.9629 33,975,767 13 192 .018464863
A 33,219,198 0.9718 34,183,163 13 109 .018347645
E 12,831,466 1.0512 12,206,494 15 251 .060118574
G1 78,423,422 1.0074 77,847,352 8 48 .002650896
Random Totals: 218,871,800   226,564,405 70 1,457  
Catg D1 Exception Values: 18,379,204   16,154,146      
Catg G1 Exception Values: 26,340,442   27,310,452      
Total Test Values (4): 263,591,446   270,029,003      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,501,450

Confidence Interval Values (5)

State Lower Limit: 256,527,553 (State Test Value minus Margin of Error Percent)
Local Test Value: 263,591,446 (Within Confidence Interval)
State Upper Limit: 283,530,453 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 283,984,506 (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