taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 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 2,149,889,150 0.9611 2,236,904,745 250 25,337 .018095308
A 2,224,737,360 0.9804 2,269,213,953 250 18,811 .005868880
A 2,237,176,970 0.9765 2,291,015,842 250 14,173 .009022343
A 2,661,134,930 0.9635 2,761,945,957 248 10,826 .017930487
B 190,197,490 0.9269 205,197,422 28 828 .026846068
B 156,836,800 0.8980 174,651,225 8 41 .026438034
B 183,041,010 0.8272 221,277,817 8 21 .017497379
B 237,431,940 0.9661 245,763,316 4 11 .004987571
C1 78,064,520 0.8622 90,541,081 15 1,527 .112351504
C1 71,311,870 0.9398 75,879,836 9 330 .012998092
C1 69,331,050 0.9909 69,967,757 12 109 .009582295
C1 58,580,180 1.0313 56,802,269 6 25 .002735253
F1 534,233,170 0.8878 601,749,459 11 1,233 .038024179
F1 560,706,650 0.8264 678,493,042 10 385 .020519973
F1 575,159,650 0.8430 682,277,165 10 151 .025573496
F1 606,385,060 0.9305 651,676,582 8 53 .002668946
L1 229,139,870 1.1374 201,459,355 11 1,504 .023773654
L1 218,634,410 1.0254 213,218,656 10 253 .004369602
L1 255,054,440 1.0964 232,629,004 9 68 .025398861
L1 245,143,730 0.9923 247,045,984 7 17 .004760184
Random Totals: 13,542,190,250   14,207,710,467 1,164 75,703  
Catg D1 Exception Values: 399,705   417,885      
Total Test Values (4): 13,542,589,955   14,208,128,352      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 710,406,418

Confidence Interval Values (5)

State Lower Limit: 13,497,721,934 (State Test Value minus Margin of Error Percent)
Local Test Value: 13,542,589,955 (Within Confidence Interval)
State Upper Limit: 14,918,534,770 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,783,740,380 (See ISD Summary Worksheet)

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, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories