taxes Property Tax Assistance

2020 Confidence Interval Detail

Travis County
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 17,422,392,033 0.9138 19,065,870,030 412 59,932 0.019274834
A 17,518,648,423 0.9230 18,980,117,468 381 42,191 0.015488487
A 17,424,656,711 0.9308 18,720,086,711 254 29,302 0.016666968
A 18,178,434,536 0.9162 19,841,120,428 108 15,191 0.026667025
B 6,033,010,055 0.9138 6,602,112,120 72 6,066 0.764004516
B 6,141,266,412 1.0292 5,967,029,161 18 215 0.002533279
B 6,840,547,988 0.9793 6,985,140,394 18 123 0.003955946
B 7,002,261,248 0.9686 7,229,260,012 10 71 0.010076419
C1 364,212,050 0.7063 515,661,971 14 1,634 0.125791219
C1 401,174,636 0.9537 420,650,766 11 598 0.079060686
C1 438,239,134 1.0161 431,295,280 11 191 0.016991866
C1 464,366,977 1.0746 432,130,074 9 30 0.003121210
E 301,246,300 0.7785 386,957,354 9 726 0.061005093
F1 9,549,749,536 0.9866 9,679,454,223 12 4,343 0.078492123
F1 10,177,412,942 0.8555 11,896,449,961 10 923 0.157928936
F1 10,743,293,424 0.9816 10,944,675,452 10 253 0.005076752
F1 10,065,984,270 0.9651 10,429,990,954 9 56 0.005406575
L1 967,334,102 1.0107 957,093,205 10 6,944 0.001246143
L1 945,835,043 0.9943 951,257,209 10 1,305 0.001778149
L1 1,018,701,712 0.9805 1,038,961,460 10 393 0.003940361
L1 1,006,821,635 0.9853 1,021,842,723 10 92 0.000743810
Random Totals: 143,005,589,167 152,497,156,956 1,408 170,579
CATG D1 EXCEPTION VALUES: 1,181,000 481,739
CATG J EXCEPTION VALUES: 5,029,942 5,074,737
Total Test Values 143,011,800,109 152,502,713,432

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,625,135,672

Confidence Interval Values(5)

Local Test Value: 143,011,800,109 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 144,877,577,760 (State Test Value minus Margin of Error Percent)
State Upper Limit: 160,127,849,104 (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