taxes Property Tax Assistance

2019 Confidence Interval Detail

Tarrant County
220-905/Fort Worth ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 5,700,502,388 0.9368 6,085,079,406 391 56017 0.020270313
A 6,821,623,288 1.0034 6,798,508,360 400 35882 0.008225956
A 5,967,020,105 0.9977 5,980,775,890 398 16671 0.008559877
A 5,852,738,415 0.9814 5,963,662,538 280 6699 0.014258810
B 1,228,646,020 1.0158 1,209,535,361 174 2883 0.156856628
B 1,152,566,796 1.0051 1,146,718,531 15 92 0.011137176
B 1,157,496,953 0.9523 1,215,475,116 13 41 0.027416299
B 1,468,668,906 1.0341 1,420,238,764 8 24 0.002145305
C1 190,700,203 0.5368 355,253,731 60 6415 0.459259570
C1 169,671,672 0.8705 194,912,891 12 816 0.090940719
C1 172,892,993 0.8759 197,388,963 10 282 0.066618001
C1 185,547,478 0.8395 221,021,415 9 91 0.028589264
F1 2,341,962,924 0.9817 2,385,619,766 38 3307 0.040185753
F1 2,377,766,812 0.9366 2,538,721,772 15 702 0.091262948
F1 2,336,557,468 0.8450 2,765,156,767 11 166 0.203750736
F1 2,417,996,337 0.8457 2,859,165,587 11 34 0.065578095
G1 82,585,189 1.0017 82,445,032 10 404 0.000781058
G1 82,439,980 1.0075 81,826,283 10 161 0.000476275
G1 82,064,932 1.0019 81,909,304 10 93 0.000985887
G1 82,235,672 1.0076 81,615,395 9 49 0.001140593
L1 537,230,837 1.0242 524,537,041 11 2062 0.027323259
L1 533,684,095 1.0422 512,074,549 10 296 0.003215925
L1 555,948,669 1.0059 552,687,811 10 80 0.005592593
L1 646,811,711 1.0261 630,359,332 8 24 0.003649673
Random Totals: 42,145,359,843 43,884,689,605 1,923 133,291
CATG D1 EXCEPTION VALUES: 1,529,375 602,366
CATG J EXCEPTION VALUES: 180,152,660 197,047,705
Total Test Values(2) 42,327,041,878 44,082,339,676

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,204,116,984

Confidence Interval Values(5)

Local Test Value: 42,327,041,878 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 41,878,222,692 (State Test Value minus Margin of Error Percent)
State Upper Limit: 46,286,456,660 (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