taxes Property Tax Assistance

2022 Confidence Interval Detail

Dallas County
057-910/Grand Prairie ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 997,122,900 0.9137 1,091,302,287 90 6,320 0.034598135
A 1,117,257,890 0.9061 1,233,040,382 99 5,504 0.026512098
A 1,652,202,390 0.9264 1,783,465,447 99 6,786 0.025352324
A 3,091,578,970 0.9750 3,170,850,226 100 9,343 0.006255458
B 264,966,400 0.9027 293,526,532 50 1,323 0.028768432
B 174,243,530 0.9255 188,269,616 7 17 0.034241854
B 196,965,000 0.9227 213,465,915 5 9 0.083277777
B 182,825,000 0.9826 186,058,786 4 8 0.034447397
F1 645,389,010 0.9948 648,762,575 10 555 0.003028902
F1 630,860,840 1.0091 625,171,777 9 80 0.009783582
F1 750,885,930 1.0458 718,001,463 8 38 0.000757906
F1 935,609,430 1.0522 889,193,528 6 21 0.004650209
L1 375,896,050 1.0379 362,169,814 11 395 0.002530250
L1 438,503,930 1.0566 415,014,130 11 68 0.004120468
L1 439,765,230 1.0080 436,275,030 7 24 0.000065912
L1 484,650,490 1.0090 480,327,542 5 8 0.000352980
Random Totals: 12,378,722,990 12,734,895,050 521 30,499
CATG D1 EXCEPTION VALUES: 65,807 59,409
Total Test Values 12,378,788,797 12,734,954,459

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 636,747,723

Confidence Interval Values(5)

Local Test Value: 12,378,788,797 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 12,098,206,736 (State Test Value minus Margin of Error Percent)
State Upper Limit: 13,371,702,182 (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