taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
210/Shelby
210-905/Timpson ISD

Category Summary

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

Stratum
Variance
A 7,857,752 0.8932 8,797,304 8 292 .026272273
A 7,629,300 0.9760 7,816,906 9 139 .069307244
A 7,668,300 0.9549 8,030,474 8 87 .012810901
A 8,363,100 1.0390 8,049,182 10 54 .014452610
D2 9,325,720 1.0006 9,320,128 12 187 .001476327
E 48,039,945 1.0186 47,162,718 14 892 .125782013
G1 1,328,540 0.9551 1,390,996 8 50 .089680482
G1 1,462,900 0.9990 1,464,364 5 10 .062695101
G1 1,192,620 1.0078 1,183,390 3 5 .030606172
G1 1,280,440 0.9783 1,308,842 3 4 .023784120
Random Totals: 94,148,617   94,524,304 80 1,720  
Catg J Exception Values: 7,091,700   7,158,324      
Catg D1 Exception Values: 14,245,579   14,349,197      
Catg G1 Exception Values: 3,216,080   3,116,293      
Total Test Values (4): 118,701,976   119,148,118      

Margin of Error

Margin of Error Percent: 7.5762531
Margin of Error Value: 9,026,963

Confidence Interval Values (5)

State Lower Limit: 110,121,155 (State Test Value minus Margin of Error Percent)
Local Test Value: 118,701,976 (Within Confidence Interval)
State Upper Limit: 128,175,081 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 128,498,985 (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