taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
210/Shelby
210-903/Shelbyville ISD

Category Summary

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

Stratum
Variance
A 5,948,599 0.7982 7,452,517 7 218 .088972687
A 6,246,160 0.9074 6,883,579 8 117 .098450744
A 5,681,030 1.0409 5,457,806 8 68 .011359746
A 6,566,820 1.0726 6,122,338 9 43 .009577600
E 56,058,514 1.0064 55,702,021 16 957 .058483967
G1 37,204,214 1.0196 36,489,029 12 65 .035375157
G1 38,059,302 1.0053 37,858,651 6 12 .002543036
G1 37,299,530 0.9694 38,476,924 3 4 .178232874
G1 32,731,977 1.0407 31,451,885 2 3 .000002678
Random Totals: 225,796,146   225,894,750 71 1,487  
Catg J Exception Values: 832,460   841,564      
Catg D1 Exception Values: 15,333,779   15,285,143      
Total Test Values (4): 241,962,385   242,021,457      

Margin of Error

Margin of Error Percent: 5.0776267
Margin of Error Value: 12,288,946

Confidence Interval Values (5)

State Lower Limit: 229,732,511 (State Test Value minus Margin of Error Percent)
Local Test Value: 241,962,385 (Within Confidence Interval)
State Upper Limit: 254,310,403 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 288,935,319 (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