taxes Property Tax Assistance

2021 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 3,417,840,689 0.9396 3,637,548,626 239 21,737 0.013200985
A 4,252,353,564 0.9638 4,412,070,517 253 20,820 0.009137648
A 4,750,788,070 0.9897 4,800,230,444 252 18,968 0.006856130
A 5,419,424,426 0.9845 5,504,748,020 253 15,128 0.007764213
B 978,702,361 0.8789 1,113,553,716 21 151 0.031439804
B 1,180,052,197 0.9260 1,274,354,424 10 59 0.011224192
B 1,482,533,306 0.9858 1,503,888,523 10 48 0.013213544
B 1,565,796,168 1.0024 1,562,047,255 8 28 0.008053451
C1 65,574,461 0.8451 77,593,730 14 662 0.084585146
C1 62,512,857 0.6112 102,278,889 10 180 0.399780245
C1 63,626,680 0.4974 127,918,536 11 85 0.587447069
C1 58,030,361 0.8160 71,115,638 8 23 0.056787102
F1 2,115,998,137 0.9514 2,224,088,855 25 1,571 0.032064398
F1 2,118,081,904 0.9119 2,322,712,912 16 435 0.062726541
F1 1,783,251,150 0.8177 2,180,813,440 16 145 0.025687773
F1 1,580,498,645 0.9127 1,731,673,765 15 32 0.039544774
L1 947,514,949 1.0126 935,724,816 15 1,841 0.001581250
L1 894,253,959 1.0205 876,290,014 10 225 0.000995513
L1 1,046,199,142 1.0185 1,027,196,016 9 61 0.004726949
L1 2,453,530,499 1.0010 2,451,079,420 6 13 0.000004359
Random Totals: 36,236,563,525 37,936,927,556 1,201 82,212
CATG D1 EXCEPTION VALUES: 42,113 37,267
CATG J EXCEPTION VALUES: 60,817,970 63,603,098
Total Test Values 36,297,423,608 38,000,567,921

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,900,028,396

Confidence Interval Values(5)

Local Test Value: 36,297,423,608 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 36,100,539,525 (State Test Value minus Margin of Error Percent)
State Upper Limit: 39,900,596,317 (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