taxes Property Tax Assistance

2022 Confidence Interval Detail

Dallas County
057-907/Duncanville ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 230,695,800 0.8685 265,625,561 30 1,405 0.035401621
A 595,773,290 0.9084 655,849,064 50 2,972 0.015504043
A 1,345,235,440 0.9334 1,441,220,741 50 5,546 0.015425511
A 3,119,820,360 0.9943 3,137,705,280 50 8,942 0.005052421
B 154,192,080 0.9481 162,632,718 12 320 0.016852326
B 88,593,570 0.9429 93,958,606 6 7 0.069341200
B 134,612,700 1.0099 133,293,098 5 8 0.048724111
B 262,550,630 1.1361 231,098,169 4 11 0.009404438
F1 215,947,310 0.8083 267,162,328 10 419 0.096373097
F1 246,340,060 0.8831 278,949,224 10 154 0.028303649
F1 213,895,120 0.9161 233,484,467 9 52 0.047643112
F1 314,067,440 0.9887 317,656,964 6 23 0.009612704
L1 108,548,670 1.0310 105,284,840 11 377 0.002387179
L1 100,746,200 1.0895 92,470,124 10 55 0.014921950
L1 104,107,710 1.0152 102,548,966 6 15 0.001544381
L1 158,881,300 1.0358 153,389,940 4 7 0.001603766
Random Totals: 7,394,007,680 7,672,330,090 273 20,313
CATG D1 EXCEPTION VALUES: 104,553 97,527
Total Test Values 7,394,112,233 7,672,427,617

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 383,621,381

Confidence Interval Values(5)

Local Test Value: 7,394,112,233 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 7,288,806,236 (State Test Value minus Margin of Error Percent)
State Upper Limit: 8,056,048,998 (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