taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 3,643,569,830 0.8574 4,249,556,601 500 53,402 .037774466
A 3,696,162,954 0.8732 4,232,893,901 494 26,086 .026706359
A 3,802,323,714 0.8869 4,287,206,803 496 12,655 .021294505
A 3,777,713,295 0.9172 4,118,745,415 202 4,635 .027555928
B 547,962,574 0.8541 641,567,233 25 3,409 .018543505
B 532,436,261 0.9461 562,769,539 11 143 .032931096
B 645,279,775 0.9866 654,043,964 9 57 .005815795
B 841,816,272 0.9766 861,986,762 6 25 .006994814
C1 139,516,214 1.0405 134,085,741 8 6,027 .024856477
C1 138,902,842 0.8810 157,664,974 7 984 .036221187
C1 142,809,906 0.9315 153,311,762 7 351 .006961159
C1 139,970,705 0.9589 145,970,075 7 102 .003475218
F1 1,634,543,445 0.7187 2,274,305,614 11 3,747 .080203366
F1 1,662,667,089 0.8279 2,008,294,588 11 757 .021415382
F1 1,653,711,712 0.8440 1,959,374,066 11 181 .079336470
F1 1,782,167,074 0.9589 1,858,553,628 10 39 .009582081
G1 181,550,417 1.0136 179,114,460 18 371 .023091945
G1 180,915,017 0.9886 183,001,231 12 169 .021238110
G1 181,235,224 0.9973 181,725,884 10 110 .017419253
G1 181,056,167 1.0484 172,697,603 9 72 .013580238
L1 552,416,550 1.0058 549,231,010 10 2,047 .001495448
L1 672,052,246 1.0415 645,273,400 10 353 .010825728
L1 827,185,180 1.0006 826,689,167 9 99 .000668150
L1 681,838,309 0.9610 709,509,166 7 18 .014271069
Random Totals: 28,239,802,772   31,747,572,587 1,900 115,839  
Catg J Exception Values: 179,663,525   181,759,485      
Catg D1 Exception Values: 1,508,959   671,879      
Total Test Values (4): 28,420,975,256   31,930,003,951      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,596,500,197

Confidence Interval Values (5)

Local Test Value: 28,420,975,256 (Outside Confidence Interval)
State Lower Limit: 30,333,503,754 (State Test Value minus Margin of Error Percent)
State Upper Limit: 33,526,504,148 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 27,638,275,368 (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