taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
220/Tarrant
220-920/White Settlement ISD

Category Summary

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

Stratum
Variance
A 242,426,998 0.8462 286,489,007 50 3,419 .028006037
A 225,834,507 0.9054 249,430,646 50 2,109 .008892709
A 250,140,636 0.9677 258,489,858 50 1,742 .006459522
A 290,792,625 0.9501 306,065,283 50 1,252 .014498230
B 22,948,758 0.8360 27,450,667 9 235 .014257897
B 22,180,263 0.8714 25,453,595 8 24 .014747528
B 27,248,904 0.9043 30,132,593 2 4 .000041462
F1 59,128,250 0.9210 64,200,054 9 122 .029663425
F1 61,365,730 0.9174 66,890,920 10 38 .004765041
F1 63,954,622 0.9026 70,855,996 6 19 .018274895
F1 49,372,159 0.9409 52,473,333 2 4 .000437073
L1 14,334,648 1.0891 13,161,921 9 71 .022766173
L1 20,117,779 1.0466 19,222,032 7 18 .010121650
L1 7,318,595 1.1426 6,405,212 2 2 .019974507
Random Totals: 1,357,164,474   1,476,721,117 264 9,059  
Catg D1 Exception Values: 457,022   160,277      
Catg B Exception Values: 31,500,000   31,187,371      
Catg L1 Exception Values: 17,790,859   17,459,886      
Total Test Values (4): 1,406,912,355   1,525,528,651      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 76,276,432

Confidence Interval Values (5)

Local Test Value: 1,406,912,355 (Outside Confidence Interval)
State Lower Limit: 1,449,252,219 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,601,805,083 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,580,742,286 (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