taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 417,083,980 0.9597 434,598,291 100 2,932 .006154251
A 450,181,819 0.9527 472,532,612 100 2,104 .016911526
A 487,431,403 0.9832 495,760,174 100 1,538 .008043771
A 536,070,439 0.9718 551,626,301 72 927 .009446329
F1 50,450,555 0.8116 62,161,847 10 210 .110257115
F1 66,572,452 0.7792 85,436,925 9 88 .171407367
F1 53,829,182 1.0011 53,770,035 8 32 .004308102
F1 60,127,383 1.0019 60,013,358 5 14 .001515535
Random Totals: 2,121,747,213   2,215,899,543 404 7,845  
Catg D1 Exception Values: 11,085,337   9,428,759      
Total Test Values (4): 2,132,832,550   2,225,328,302      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 111,266,415

Confidence Interval Values (5)

State Lower Limit: 2,114,061,887 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,132,832,550 (Within Confidence Interval)
State Upper Limit: 2,336,594,717 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,274,853,765 (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