taxes Property Tax Assistance

2017 Confidence Interval Detail

210/Shelby
210-901/Center ISD

Category Summary

(1)
Category		 (1)
Local
Value		 (1)
Stratum
Ratio		 (1)
State
Value		 (2)
Sample
Size		 (3)
Total
Parcels
Stratum
Variance
A 36,758,919 0.8116 45,291,916 15 1,038 .132906842
A 38,066,779 0.9073 41,956,110 12 536 .035513880
A 38,070,271 0.9704 39,231,524 13 320 .024190064
A 36,964,090 0.9862 37,481,332 14 171 .030886398
E 95,059,282 0.8461 112,349,937 17 1,281 .030326983
F1 25,390,180 0.9797 25,916,280 11 261 .016590890
F1 27,259,670 0.9488 28,730,681 11 114 .002733740
F1 28,559,838 0.8841 32,303,855 9 46 .048739073
F1 21,942,610 0.7977 27,507,346 6 10 .018738440
G1 10,957,218 0.9894 11,074,609 9 73 .002079086
G1 11,403,829 1.0139 11,247,489 5 10 .010442029
G1 15,062,877 0.9157 16,449,576 3 4 .023733690
L1 9,811,410 0.8891 11,035,215 10 174 .076546379
L1 11,585,550 0.9422 12,296,275 11 45 .043443886
L1 9,952,010 0.9734 10,223,968 6 14 .001086727
L1 8,589,020 0.9388 9,148,935 2 3 .011111098
Random Totals: 425,433,553   472,245,048 154 4,100  
Catg J Exception Values: 3,762,770   3,435,106      
Catg D1 Exception Values: 18,778,234   19,069,801      
Catg G1 Exception Values: 5,615,502   5,543,731      
Total Test Values (4): 453,590,059   500,293,686      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,014,684

Confidence Interval Values (5)

Local Test Value: 453,590,059 (Outside Confidence Interval)
State Lower Limit: 475,279,002 (State Test Value minus Margin of Error Percent)
State Upper Limit: 525,308,370 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 545,174,887 (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, D2, E, 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