taxes Property Tax Assistance

2025 Confidence Interval Detail

Shelby County
210-905/Timpson ISD

Category Summary

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

Stratum
Variance
A 2 15,035,195 0.8045 18,688,869 15 333 939,467,219
A 3 16,532,090 1.0249 16,130,442 17 171 450,960,269
A 4 16,128,340 1.0372 15,549,884 16 111 910,381,454
A 5 21,267,090 1.0354 20,539,975 18 88 8,577,101,721
D2 0 2,304,031 0.9641 2,389,826 20 175 244,957,974,883
E 0 111,507,864 0.9514 117,203,977 21 1,091 28,347,146,391
Random Totals: 182,774,610 190,502,973 107 1,969
CATG D1 EXCEPTION VALUES: 12,774,146 10,207,863
Total Test Values 195,548,756 200,710,836

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,035,542

Confidence Interval Values(5)

Local Test Value: 195,548,756 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 190,675,294 (State Test Value minus Margin of Error Percent)
State Upper Limit: 210,746,378 (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