taxes Property Tax Assistance

2020 Confidence Interval Detail

Dallas County
057-916/Richardson ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 4,009,321,582 0.9580 4,185,095,597 84 18,083 0.013331205
A 4,060,633,033 0.9927 4,090,493,637 91 12,687 0.009032782
A 3,890,213,347 1.0286 3,782,046,808 65 9,159 0.010044950
A 4,868,997,597 0.9931 4,902,827,104 50 7,635 0.011864670
B 742,308,630 0.9550 777,286,524 16 470 0.007120767
B 943,355,520 0.9144 1,031,666,142 9 61 0.034660166
B 757,980,400 0.8770 864,287,799 8 28 0.022865930
B 976,494,140 1.0526 927,697,264 7 18 0.006792423
F1 1,430,891,690 0.8908 1,606,299,607 16 891 0.045349108
F1 1,421,978,460 0.7633 1,862,935,229 15 255 0.034017244
F1 1,489,210,910 0.8814 1,689,597,130 15 81 0.009097870
F1 1,439,749,230 0.8507 1,692,428,859 11 20 0.015083232
L1 504,404,950 1.0269 491,191,888 11 1,868 0.001654636
L1 498,319,650 1.0104 493,190,469 11 219 0.003276766
L1 504,210,200 1.0210 493,839,569 10 49 0.007602111
L1 572,737,010 0.9428 607,485,161 5 9 0.003255659
Random Totals: 28,110,806,349 29,498,368,787 424 51,533
CATG D1 EXCEPTION VALUES: 3,728 3,778
CATG J EXCEPTION VALUES: 169,287,291 183,888,632
Total Test Values 28,280,097,368 29,682,261,197

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,484,113,060

Confidence Interval Values(5)

Local Test Value: 28,280,097,368 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 28,198,148,137 (State Test Value minus Margin of Error Percent)
State Upper Limit: 31,166,374,257 (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