taxes Property Tax Assistance

2020 Confidence Interval Detail

Williamson County
246-913/Leander ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 3,242,690,599 0.9515 3,407,977,508 97 14,001 0.002788639
A 2,945,997,465 0.9604 3,067,469,247 97 10,453 0.003005722
A 3,292,337,107 0.9692 3,396,963,585 96 9,419 0.003482633
A 3,685,953,545 0.9590 3,843,538,629 93 7,306 0.003092660
B 942,136,243 0.9743 966,987,830 8 30 0.004668556
C1 59,019,864 0.9193 64,200,875 10 301 0.018035835
C1 66,161,529 1.1528 57,392,027 10 113 0.050059424
C1 56,499,848 0.9565 59,069,365 10 55 0.062793339
C1 67,014,965 1.3919 48,146,393 7 32 0.175697863
F1 576,584,175 0.9536 604,639,445 12 498 0.009843798
F1 603,549,028 0.9023 668,900,618 12 191 0.034907932
F1 593,385,063 0.9333 635,792,417 9 69 0.014869970
F1 707,650,768 0.9680 731,044,182 7 23 0.004845423
L1 133,105,462 1.0336 128,778,504 12 790 0.021635749
L1 126,823,946 1.0128 125,221,116 10 133 0.016973261
L1 138,717,424 0.9260 149,802,834 9 29 0.008262139
L1 135,301,267 0.9184 147,322,808 5 8 0.002887363
Random Totals: 17,372,928,298 18,103,247,383 504 43,451
CATG D1 EXCEPTION VALUES: 453,169 394,808
Total Test Values 17,373,381,467 18,103,642,191

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 905,182,110

Confidence Interval Values(5)

Local Test Value: 17,373,381,467 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 17,198,460,081 (State Test Value minus Margin of Error Percent)
State Upper Limit: 19,008,824,301 (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