taxes Property Tax Assistance

2018 Confidence Interval Detail

057/Dallas
057-909/Garland ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 3,692,406,430 0.9506 3,884,290,375 250 25573 0.020474250
A 3,691,058,000 0.9649 3,825,326,977 250 19184 0.007205952
A 3,691,982,510 0.9674 3,816,397,054 250 15400 0.005661687
A 3,691,030,760 0.9834 3,753,336,140 250 10764 0.005099415
B 288,553,940 0.9751 295,922,408 25 972 0.007497685
B 258,417,460 0.8207 314,874,449 8 48 0.027751867
B 315,957,350 0.8761 360,640,737 5 23 0.053197565
B 433,342,630 0.9361 462,923,438 6 15 0.007025833
C1 79,383,950 0.8096 98,053,298 12 1185 0.066621764
C1 87,344,590 0.7597 114,972,476 11 338 0.250796687
C1 88,288,880 0.8697 101,516,477 9 116 0.077127569
C1 94,665,380 1.1054 85,639,027 6 25 0.090771514
F1 731,253,470 0.9353 781,838,415 15 1309 0.022052182
F1 735,819,800 0.9646 762,823,761 13 374 0.010387631
F1 749,701,290 0.8348 898,060,961 9 143 0.006816285
F1 789,535,500 0.8642 913,602,754 10 50 0.015263821
L1 326,193,650 1.0267 317,710,772 11 1380 0.008836399
L1 332,265,060 0.9593 346,361,993 9 192 0.002396508
L1 329,337,250 1.0466 314,673,466 9 53 0.011941593
L1 241,340,010 0.9955 242,430,949 4 5 0.000034193
Random Totals: 20,647,877,910 21,691,395,927 1,162 77,149
CATG D1 EXCEPTION VALUES: 375,889 342,785
Total Test Values(1) 20,648,253,799 21,691,738,712

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,084,586,936

Confidence Interval Values(5)

Local Test Value: 20,648,253,799 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 20,607,151,776 (State Test Value minus Margin of Error Percent)
State Upper Limit: 22,776,325,648 (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