taxes Property Tax Assistance

2020 Confidence Interval Detail

Travis County
227-910/Del Valle ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 694,994,694 0.8425 824,919,518 32 4,376 0.027059032
A 727,006,257 0.9477 767,126,999 46 3,549 0.003955384
A 785,231,419 0.9761 804,457,964 32 3,075 0.008821478
A 776,144,605 0.9499 817,080,330 27 2,147 0.014994655
B 950,436,531 0.9160 1,037,594,466 8 34 0.002722562
F1 493,694,494 0.9792 504,181,469 10 227 0.026598180
F1 556,479,801 1.0708 519,686,030 9 60 0.011314522
F1 583,800,248 0.9420 619,745,486 8 30 0.004596085
F1 638,139,955 0.9399 678,944,521 5 14 0.006802200
L1 261,089,150 1.0048 259,841,909 10 301 0.001574831
L1 277,935,564 0.9726 285,765,540 9 63 0.002266206
L1 276,869,604 0.9982 277,368,868 7 19 0.001240802
L1 303,573,554 0.9747 311,453,323 4 9 0.000890067
Random Totals: 7,325,395,876 7,708,166,423 207 13,904
CATG D1 EXCEPTION VALUES: 6,067,704 5,592,533
Total Test Values 7,331,463,580 7,713,758,956

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 385,687,948

Confidence Interval Values(5)

Local Test Value: 7,331,463,580 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 7,328,071,008 (State Test Value minus Margin of Error Percent)
State Upper Limit: 8,099,446,904 (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