taxes Property Tax Assistance

2022 Confidence Interval Detail

Williamson County
246-909/Round Rock ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 8,086,305,546 1.0070 8,030,094,882 253 19,129 0.012771722
A 8,085,260,160 1.0026 8,064,292,998 246 15,112 0.011426158
A 8,086,067,762 0.9987 8,096,593,333 251 12,156 0.013721663
A 8,085,292,923 0.9865 8,195,938,087 245 8,892 0.016933978
B 1,422,747,137 1.0523 1,352,035,671 10 1,253 0.014374268
B 513,676,074 0.9532 538,896,427 8 12 0.014974103
B 644,960,141 1.0054 641,496,062 7 12 0.004398137
B 4,095,430,931 1.0482 3,907,108,310 7 54 0.004950204
C1 50,391,360 0.7402 68,078,033 11 169 0.222490347
C1 63,007,338 0.9479 66,470,448 9 70 0.085319360
C1 81,422,914 1.0519 77,405,565 8 43 0.042408731
C1 100,370,841 1.0454 96,011,901 6 20 0.305720306
F1 2,059,884,702 0.9826 2,096,361,390 10 1,007 0.024989200
F1 2,183,834,392 1.0125 2,156,873,474 10 250 0.007359297
F1 1,820,223,993 0.9770 1,863,074,711 9 56 0.019614084
F1 2,410,308,098 1.0340 2,331,052,319 6 16 0.000426720
L1 316,233,731 1.0603 298,249,298 12 1,552 0.078952190
L1 284,165,730 0.9988 284,507,139 11 220 0.027820917
L1 329,770,113 0.9639 342,120,669 10 64 0.008571163
L1 317,851,642 1.0356 306,925,108 6 13 0.003440312
Random Totals: 49,037,205,528 48,813,585,825 1,135 60,100
CATG D1 EXCEPTION VALUES: 734,209 720,891
CATG J EXCEPTION VALUES: 184,752,252 194,254,066
Total Test Values 49,222,691,989 49,008,560,782

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,450,428,039

Confidence Interval Values(5)

Local Test Value: 49,222,691,989 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 46,558,132,743 (State Test Value minus Margin of Error Percent)
State Upper Limit: 51,458,988,821 (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