taxes Property Tax Assistance

2018 Confidence Interval Detail

227/Travis
227-901/Austin ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 14,180,086,530 0.9589 14,787,867,901 846 54602 0.022089258
A 17,122,194,081 0.9631 17,778,210,031 923 46124 0.022855169
A 16,607,685,407 0.9566 17,361,159,740 876 30860 0.019351142
A 17,910,386,817 0.9532 18,789,746,975 784 16743 0.044514635
B 5,778,384,687 0.9730 5,938,730,408 186 8257 0.011835247
B 5,375,882,304 0.9641 5,576,062,964 10 228 0.000962635
B 5,009,153,563 0.9817 5,102,529,859 9 103 0.001475613
B 6,056,072,829 0.9735 6,220,927,405 8 71 0.000362734
C1 318,682,623 0.8285 384,650,118 43 1746 0.091585365
C1 355,316,320 0.8361 424,968,688 19 719 0.034243976
C1 389,230,961 0.9548 407,657,060 10 266 0.041622331
C1 315,619,861 0.8522 370,358,908 8 41 0.147914095
E 264,291,392 0.8978 294,376,690 15 761 0.113146709
F1 8,254,560,970 0.9610 8,589,553,559 17 4623 0.011813632
F1 8,163,385,175 0.9560 8,539,105,832 10 913 0.001307764
F1 8,449,000,095 0.9482 8,910,567,491 10 260 0.001278837
F1 8,903,674,520 0.9682 9,196,110,845 8 65 0.001013455
L1 926,796,331 1.0788 859,099,306 11 6971 0.055097267
L1 954,048,315 0.9816 971,931,861 11 1390 0.002727998
L1 952,348,673 1.0549 902,785,736 11 376 0.013057405
L1 935,196,907 1.0200 916,859,713 10 90 0.004636191
Random Totals: 127,221,998,361 132,323,261,090 3,825 175,209
CATG D1 EXCEPTION VALUES: 1,489,121 854,101
CATG J EXCEPTION VALUES: 4,344,159 4,652,139
Total Test Values(2) 127,227,831,641 132,328,767,330

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,616,438,367

Confidence Interval Values(5)

Local Test Value: 127,227,831,641 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 125,712,328,963 (State Test Value minus Margin of Error Percent)
State Upper Limit: 138,945,205,697 (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