taxes Property Tax Assistance

2020 Confidence Interval Detail

Travis County
027-904/Marble Falls ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 115,121,689 0.7078 162,647,201 15 351 0.095071496
A 119,099,958 0.7787 152,947,166 15 196 0.085102082
A 116,376,708 0.8060 144,387,975 15 132 0.072013162
A 118,895,630 0.8856 134,254,325 15 68 0.012595678
C1 14,468,374 0.7193 20,114,520 13 293 0.248327115
C1 13,626,788 0.7310 18,641,297 9 112 0.305686889
C1 13,899,489 0.8147 17,060,868 11 54 0.061485688
C1 13,084,821 1.1077 11,812,604 10 26 0.143009271
E 69,120,123 0.7966 86,768,922 20 261 0.083172597
Random Totals: 593,693,580 748,634,878 123 1,493
CATG D1 EXCEPTION VALUES: 1,545,245 344,633
Total Test Values 595,238,825 748,979,511

Margin of Error

Margin of Error Percent: 5.5024266
Margin of Error Value: 41,212,048

Confidence Interval Values(5)

Local Test Value: 595,238,825 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 707,767,463 (State Test Value minus Margin of Error Percent)
State Upper Limit: 790,191,559 (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