taxes Property Tax Assistance

2019 Confidence Interval Detail

Shelby County
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 7,768,631 0.8962 8,668,412 10 269 0.120427881
A 9,012,194 0.9217 9,777,795 10 155 0.010159893
A 9,840,620 1.0185 9,661,875 9 103 0.023165798
A 10,404,960 1.0722 9,704,309 8 60 0.027254309
D2 8,478,110 0.8485 9,991,880 10 184 0.007193893
E 56,345,143 0.9152 61,565,934 21 857 0.045399773
G1 1,689,610 1.0120 1,669,575 9 45 0.002320553
G1 1,366,190 0.9536 1,432,666 4 5 0.003587949
G1 2,126,860 0.9924 2,143,148 3 4 0.000120768
Random Totals: 107,032,318 114,615,594 84 1,682
CATG D1 EXCEPTION VALUES: 14,942,150 13,871,572
CATG G1 EXCEPTION VALUES: 3,442,835 3,438,527
CATG J EXCEPTION VALUES: 8,542,970 8,728,593
Total Test Values(3) 133,960,273 140,654,286

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,032,714

Confidence Interval Values(5)

Local Test Value: 133,960,273 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 133,621,572 (State Test Value minus Margin of Error Percent)
State Upper Limit: 147,687,000 (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