taxes Property Tax Assistance

2025 Confidence Interval Detail

Shelby County
210-901/Center 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 68,668,132 0.9518 72,145,547 15 1,193 1,281,444,691
A 3 69,635,119 1.0522 66,180,497 16 602 1,100,465,792
A 4 68,017,515 1.1427 59,523,510 17 382 1,268,315,147
A 5 71,405,140 1.0299 69,332,110 17 245 14,460,887,336
E 0 174,266,155 0.9418 185,035,204 21 1,450 32,527,670,361
F1 2 34,255,610 0.6973 49,126,072 10 290 7,756,779,779
F1 3 37,064,909 0.8684 42,681,839 11 121 12,181,811,914
F1 4 38,305,880 0.7966 48,086,719 9 51 154,283,406,884
F1 5 36,500,635 0.9098 40,119,405 6 13 13,755,254,122,003
L1 2 11,239,220 0.9647 11,650,482 10 169 4,298,683,417
L1 3 10,774,196 0.9935 10,844,686 8 36 23,679,239,335
L1 4 19,578,180 1.0453 18,729,724 6 21 85,117,453,426
Random Totals: 639,710,691 673,455,795 146 4,573
CATG D1 EXCEPTION VALUES: 16,790,621 13,762,880
CATG J EXCEPTION VALUES: 33,018,247 36,142,700
CATG L1 EXCEPTION VALUES: 11,511,300 12,519,501
Total Test Values 701,030,859 735,880,876

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 36,794,044

Confidence Interval Values(5)

Local Test Value: 701,030,859 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 699,086,832 (State Test Value minus Margin of Error Percent)
State Upper Limit: 772,674,920 (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