taxes Property Tax Assistance

2017 Confidence Interval Detail

220/Tarrant
220-919/Carroll ISD

Category Summary

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

Stratum
Variance
A 1,233,346,981 0.9482 1,300,724,511 120 2,633 .013299704
A 1,758,891,342 0.9749 1,804,176,164 147 2,837 .012591546
A 1,677,108,115 0.9850 1,702,647,832 122 2,088 .013463553
A 1,752,655,945 0.9709 1,805,186,883 65 1,320 .017559345
F1 308,890,800 0.9242 334,225,060 10 192 .009150988
F1 181,251,903 0.9514 190,510,724 9 33 .027493093
F1 310,805,230 0.8586 361,990,717 6 16 .035881229
F1 581,724,512 0.8392 693,189,361 4 9 .002732228
L1 72,125,928 1.1265 64,026,567 15 463 .019683391
L1 75,167,363 1.0310 72,907,239 11 101 .010081707
L1 93,317,128 1.0906 85,564,944 8 33 .013942385
L1 82,892,455 0.9668 85,738,989 3 8 .001609809
Random Totals: 8,128,177,702   8,500,888,991 520 9,733  
Catg D1 Exception Values: 119,353   53,639      
Total Test Values (4): 8,128,297,055   8,500,942,630      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 425,047,131

Confidence Interval Values (5)

State Lower Limit: 8,075,895,499 (State Test Value minus Margin of Error Percent)
Local Test Value: 8,128,297,055 (Within Confidence Interval)
State Upper Limit: 8,925,989,761 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 7,785,796,578 (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