taxes Property Tax Assistance

2017 Confidence Interval Detail

220/Tarrant
220-905/Fort Worth ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 4,096,347,374 0.9115 4,494,072,818 606 50,030 .019835517
A 5,535,115,498 0.9524 5,811,755,038 1,412 33,547 .013567583
A 5,001,241,510 0.9572 5,224,865,765 705 14,603 .011466097
A 5,205,887,742 0.9508 5,475,271,079 193 6,000 .012918096
B 787,667,344 0.9908 794,981,171 75 3,041 .140818790
B 814,131,664 1.1789 690,585,855 13 109 .059249869
B 1,118,059,547 1.0381 1,077,024,898 10 57 .020241740
B 1,191,132,646 0.9925 1,200,133,648 7 23 .003775956
C1 134,819,076 0.9205 146,462,875 37 5,149 .086889764
C1 156,221,703 0.9091 171,842,155 21 941 .027735967
C1 159,280,385 0.9675 164,630,889 11 359 .051806094
C1 208,246,869 0.9552 218,013,891 10 142 .007138759
F1 1,689,022,553 1.0065 1,678,114,807 29 3,496 .079771185
F1 1,956,726,235 0.9570 2,044,646,014 16 820 .029821329
F1 1,900,279,343 0.8909 2,132,988,375 9 197 .008395132
F1 2,438,951,657 0.8391 2,906,628,122 9 50 .005098279
L1 817,100,788 0.9572 853,636,427 13 3,017 .034106971
L1 867,720,133 1.0617 817,293,146 11 433 .005325258
L1 843,600,828 1.0976 768,586,760 10 110 .015000972
L1 937,173,492 1.1367 824,468,630 9 31 .103294568
Random Totals: 35,858,726,387   37,496,002,363 3,206 122,155  
Catg J Exception Values: 180,086,640   167,746,030      
Catg D1 Exception Values: 1,592,062   650,476      
Total Test Values (4): 36,040,405,089   37,664,398,869      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,883,219,943

Confidence Interval Values (5)

State Lower Limit: 35,781,178,926 (State Test Value minus Margin of Error Percent)
Local Test Value: 36,040,405,089 (Within Confidence Interval)
State Upper Limit: 39,547,618,812 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 33,528,922,568 (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, 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
(6) Includes local value of unstudied property categories and sub-categories