taxes Property Tax Assistance

2023 Confidence Interval Detail

Tarrant County
220-902/Birdville ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,528,894,825 0.9381 1,629,778,089 114 7,806 0.031552996
A 2,647,437,319 0.9866 2,683,394,809 152 10,392 0.009845808
A 3,116,450,348 0.9935 3,136,839,807 153 9,604 0.008787517
A 5,039,740,042 0.9920 5,080,383,107 154 10,355 0.007112110
B 449,666,839 0.9188 489,406,660 9 56 0.008706867
B 474,690,902 0.9569 496,071,587 7 15 0.000701684
B 461,650,000 0.9893 466,643,081 5 10 0.000987575
B 854,600,000 1.0290 830,515,063 5 13 0.003376699
F1 599,128,206 0.9315 643,186,480 12 837 0.024493202
F1 669,261,308 0.8054 830,967,604 12 322 0.052347634
F1 629,748,554 0.8441 746,059,180 11 112 0.023879713
F1 618,164,350 0.8448 731,728,634 9 30 0.065420940
L1 214,472,706 0.9883 217,011,743 11 1,072 0.002827398
L1 207,099,561 0.9705 213,394,705 11 177 0.004027188
L1 265,532,656 1.0029 264,764,838 9 64 0.000271066
L1 397,478,246 1.0104 393,387,021 8 24 0.002740821
Random Totals: 18,174,015,862 18,853,532,408 682 40,889
CATG D1 EXCEPTION VALUES: 35,293 35,488
Total Test Values 18,174,051,155 18,853,567,896

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 942,678,395

Confidence Interval Values(5)

Local Test Value: 18,174,051,155 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 17,910,889,501 (State Test Value minus Margin of Error Percent)
State Upper Limit: 19,796,246,291 (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