taxes Property Tax Assistance

2023 Confidence Interval Detail

Shelby County
210-906/Excelsior ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,617,810 0.5497 2,943,078 13 38 0.099199171
A 2,490,070 0.8090 3,077,960 12 27 0.113707988
A 1,724,770 0.7951 2,169,249 10 13 0.073908034
A 2,887,590 0.7652 3,773,641 7 15 0.020618891
D2 2,307,640 0.6371 3,622,100 9 31 0.742627526
E 10,933,940 0.9461 11,556,854 20 126 0.111664820
G1 3,248,801 0.9951 3,264,799 6 15 0.000155115
Random Totals: 25,210,621 30,407,681 77 265
CATG D1 EXCEPTION VALUES: 2,815,500 2,164,746
CATG G1 EXCEPTION VALUES: 7,695,123 7,551,924
CATG J EXCEPTION VALUES: 120,850 125,319
Total Test Values 35,842,094 40,249,670

Margin of Error

Margin of Error Percent: 6.0948586
Margin of Error Value: 2,453,160

Confidence Interval Values(5)

Local Test Value: 35,842,094 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 37,796,510 (State Test Value minus Margin of Error Percent)
State Upper Limit: 42,702,830 (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