taxes Property Tax Assistance

2024 Confidence Interval Detail

Williamson County
246-909/Round Rock ISD

Category Summary

(1)
Category 		(1)
Stratum
Number 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 2 6,500,195,429 0.9628 6,751,345,481 248 18,240 0.008679629
A 3 6,672,476,557 0.9424 7,080,301,949 250 14,846 0.007846788
A 4 7,290,707,464 0.9418 7,741,248,104 248 12,924 0.007631017
A 5 7,836,658,338 0.9380 8,354,646,416 198 9,571 0.005534611
B 2 2,173,657,246 0.9841 2,208,776,797 18 437 0.005853179
B 3 2,907,193,147 0.9525 3,052,171,283 10 44 0.007398770
B 4 811,371,897 0.9293 873,100,072 7 10 0.009411523
C1 2 95,500,948 0.9142 104,463,955 10 178 0.169489661
C1 3 81,193,102 1.1620 69,873,582 9 51 0.273123770
C1 4 79,204,931 0.8879 89,204,788 8 24 0.205076807
F1 2 2,438,905,184 0.9911 2,460,806,361 13 986 0.034206913
F1 3 2,361,694,787 0.9383 2,516,993,272 10 255 0.026997350
F1 4 2,847,193,422 0.9231 3,084,382,431 9 87 0.028056002
F1 5 2,167,182,841 0.9600 2,257,482,126 6 11 0.002361158
L1 2 375,446,380 1.1256 333,552,221 10 1,563 0.008977233
L1 3 356,806,992 1.0261 347,731,207 10 219 0.004769486
L1 4 409,026,836 0.9882 413,910,986 10 64 0.003136102
L1 5 411,414,619 0.9547 430,936,021 6 16 0.024840714
Random Totals: 45,815,830,120 48,170,927,052 1,080 59,526
CATG B EXCEPTION VALUES: 736,736,987 771,871,419
CATG C1 EXCEPTION VALUES: 64,918,506 75,934,912
CATG D1 EXCEPTION VALUES: 576,961 526,432
CATG J EXCEPTION VALUES: 33,604,399 35,584,818
Total Test Values 46,651,666,973 49,054,844,633

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,452,742,232

Confidence Interval Values(5)

Local Test Value: 46,651,666,973 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 46,602,102,401 (State Test Value minus Margin of Error Percent)
State Upper Limit: 51,507,586,865 (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