taxes Property Tax Assistance

2019 Confidence Interval Detail

Shelby County
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 38,206,884 0.9402 40,636,975 16 1036 0.114102593
A 41,770,598 0.9180 45,501,741 16 566 0.028956243
A 38,812,742 0.9834 39,467,909 18 321 0.053029744
A 47,787,480 1.0462 45,677,194 16 230 0.016935019
E 99,258,256 0.9587 103,534,219 20 1248 0.031525856
F1 25,949,130 0.8928 29,064,886 15 252 0.018856001
F1 26,576,490 0.8832 30,091,135 16 104 0.011281561
F1 25,006,910 0.8137 30,732,346 14 40 0.072154002
F1 34,143,770 0.9763 34,972,621 8 15 0.012339309
G1 8,004,649 0.9907 8,079,791 9 80 0.000601399
G1 8,606,080 0.9974 8,628,514 6 13 0.000182411
G1 7,256,709 1.0363 7,002,518 3 4 0.002686771
L1 9,821,620 0.9224 10,647,897 10 179 0.047574038
L1 9,960,120 1.0160 9,803,268 11 39 0.012653208
L1 11,624,595 0.9944 11,690,059 6 19 0.003470971
L1 9,439,590 0.8935 10,564,734 3 5 0.016675310
Random Totals: 442,225,623 466,095,807 187 4,151
CATG D1 EXCEPTION VALUES: 19,369,453 18,891,903
CATG G1 EXCEPTION VALUES: 7,477,978 7,386,370
CATG J EXCEPTION VALUES: 3,704,770 3,774,574
Total Test Values(3) 472,777,824 496,148,654

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,807,433

Confidence Interval Values(5)

Local Test Value: 472,777,824 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 471,341,221 (State Test Value minus Margin of Error Percent)
State Upper Limit: 520,956,087 (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