taxes Property Tax Assistance

2018 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 37,216,793 0.9032 41,205,484 17 1039 0.103936571
A 37,650,610 0.8838 42,600,826 17 520 0.064072438
A 40,229,634 0.9398 42,806,591 14 334 0.028513498
A 37,158,910 1.0388 35,770,995 15 174 0.021124626
E 97,548,492 1.1727 83,182,819 21 1295 0.088522356
F1 25,225,850 0.8481 29,743,957 14 257 0.063765252
F1 26,892,530 0.8660 31,053,730 13 112 0.036470586
F1 25,788,000 0.8035 32,094,586 11 44 0.054742736
F1 29,196,160 1.0010 29,166,993 7 15 0.034172230
G1 10,299,089 1.0079 10,218,364 9 72 0.000128252
G1 10,727,471 0.9967 10,762,989 5 12 0.000656338
G1 13,941,054 1.0136 13,754,000 3 4 0.000086809
L1 10,032,810 1.0145 9,889,414 9 186 0.037502156
L1 9,940,080 1.0028 9,912,325 9 40 0.026660900
L1 12,034,370 0.9938 12,109,449 8 18 0.002981876
Random Totals: 423,881,853 434,272,522 172 4,122
CATG D1 EXCEPTION VALUES: 19,052,816 18,673,153
CATG G1 EXCEPTION VALUES: 5,874,938 6,105,187
CATG J EXCEPTION VALUES: 22,163,490 23,204,824
CATG L1 EXCEPTION VALUES: 10,042,560 9,464,401
Total Test Values(4) 481,015,657 491,720,087

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,586,004

Confidence Interval Values(5)

Local Test Value: 481,015,657 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 467,134,083 (State Test Value minus Margin of Error Percent)
State Upper Limit: 516,306,091 (State Test Value plus Margin of Error Percent)

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