taxes Property Tax Assistance

2017 Confidence Interval Detail

220/Tarrant
220-917/Castleberry ISD

Category Summary

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

Stratum
Variance
A 90,504,793 1.0103 89,582,097 12 1,408 .013880260
A 99,857,581 0.9827 101,615,530 15 1,205 .019576879
A 129,119,385 0.9610 134,359,402 28 1,250 .015433768
A 206,652,489 0.9784 211,214,727 49 1,294 .018630272
F1 17,118,515 0.9190 18,627,329 9 108 .020614965
F1 17,844,776 0.7862 22,697,502 9 49 .011182623
F1 18,530,685 0.7277 25,464,731 5 24 .033023736
Random Totals: 579,628,224   603,561,318 127 5,338  
Catg D1 Exception Values: 1,924   2,097      
Catg F1 Exception Values: 19,812,108   22,178,401      
Total Test Values (4): 599,442,256   625,741,816      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 31,287,090

Confidence Interval Values (5)

State Lower Limit: 594,454,726 (State Test Value minus Margin of Error Percent)
Local Test Value: 599,442,256 (Within Confidence Interval)
State Upper Limit: 657,028,906 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 615,666,463 (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