taxes Property Tax Assistance

2019 Confidence Interval Detail

Tarrant County
220-901/Arlington ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 2,581,082,669 0.9664 2,670,822,298 238 18441 0.008679357
A 3,885,826,644 0.9831 3,952,626,024 252 21248 0.005749204
A 5,066,212,788 1.0063 5,034,495,467 246 22021 0.005651935
A 5,304,056,721 1.0151 5,225,156,853 250 15605 0.009045878
B 1,007,454,000 0.9588 1,050,744,681 64 1617 0.035385919
B 983,873,749 0.9562 1,028,941,382 15 58 0.020757137
B 1,440,752,961 1.0723 1,343,609,961 12 52 0.052871412
B 1,166,759,435 1.0582 1,102,588,769 8 23 0.007678692
C1 71,383,565 0.9618 74,218,720 14 691 0.049325157
C1 63,722,917 0.6392 99,691,672 9 164 0.183899752
C1 55,668,828 0.8807 63,209,751 9 66 0.069603648
C1 66,234,466 1.0298 64,317,796 7 25 0.160126289
F1 1,671,034,538 0.8902 1,877,145,066 29 1478 0.142306057
F1 1,927,638,946 1.0605 1,817,669,916 17 502 0.027111941
F1 1,939,481,823 0.9441 2,054,318,211 10 186 0.065529576
F1 1,970,632,240 0.8216 2,398,529,990 9 53 0.063183724
L1 528,576,111 1.0414 507,563,003 12 1288 0.024241712
L1 613,814,977 1.0268 597,794,095 13 212 0.009945165
L1 700,634,865 1.0351 676,876,500 9 53 0.005480908
L1 464,209,953 1.0131 458,207,436 6 8 0.000522701
Random Totals: 31,509,052,196 32,098,527,591 1,229 83,791
CATG D1 EXCEPTION VALUES: 48,562 34,926
CATG J EXCEPTION VALUES: 63,174,120 64,794,007
Total Test Values(2) 31,572,274,878 32,163,356,524

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,608,167,826

Confidence Interval Values(5)

Local Test Value: 31,572,274,878 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 30,555,188,698 (State Test Value minus Margin of Error Percent)
State Upper Limit: 33,771,524,350 (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