taxes Property Tax Assistance

2020 Confidence Interval Detail

Williamson County
246-904/Georgetown ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 2,294,812,296 0.9689 2,368,471,768 98 9,792 0.003853297
A 2,259,985,916 0.9577 2,359,805,697 99 7,403 0.004189749
A 2,194,650,653 0.9620 2,281,341,635 96 5,515 0.008089560
A 2,061,166,281 0.9738 2,116,621,771 92 3,461 0.003845964
B 151,040,720 0.9422 160,306,432 10 298 0.005442718
B 100,998,253 0.8204 123,108,548 5 6 0.109937550
B 121,970,880 1.0078 121,026,870 3 4 0.000700671
B 153,805,025 0.9627 159,758,195 3 5 0.007814926
E 418,195,042 1.0270 407,200,625 14 1,526 0.050630060
F1 379,198,616 0.6784 558,960,224 10 535 0.347009725
F1 367,358,064 0.9384 391,472,788 10 147 0.023425894
F1 413,014,639 0.9288 444,675,537 9 54 0.015831084
F1 393,917,693 0.9295 423,795,259 6 13 0.015543013
L1 83,633,658 1.0204 81,961,641 13 669 0.020325591
L1 99,704,197 0.9918 100,528,531 10 128 0.005103081
L1 92,361,381 0.9708 95,139,453 9 31 0.004955849
L1 81,846,246 1.0308 79,400,704 5 11 0.022108915
Random Totals: 11,667,659,560 12,273,575,678 492 29,598
CATG D1 EXCEPTION VALUES: 6,444,932 8,608,521
Total Test Values 11,674,104,492 12,282,184,199

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 614,109,210

Confidence Interval Values(5)

Local Test Value: 11,674,104,492 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 11,668,074,989 (State Test Value minus Margin of Error Percent)
State Upper Limit: 12,896,293,409 (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