taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 92,820,713 0.8774 105,790,646 23 1,915 .051645035
A 91,611,965 0.8619 106,290,712 32 1,399 .033177445
A 91,476,612 0.8879 103,025,805 24 1,048 .040753489
A 91,229,998 0.8536 106,876,755 16 704 .067798534
F1 15,411,481 0.9431 16,341,301 9 119 .011125773
F1 15,901,818 0.8817 18,035,407 8 53 .003568015
F1 18,159,448 0.9325 19,473,939 7 27 .028775032
F1 15,667,921 0.8438 18,568,288 5 10 .023788716
Random Totals: 432,279,956   494,402,853 124 5,275  
Catg D1 Exception Values: 8,492   9,011      
Total Test Values (4): 432,288,448   494,411,864      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,720,593

Confidence Interval Values (5)

Local Test Value: 432,288,448 (Outside Confidence Interval)
State Lower Limit: 469,691,271 (State Test Value minus Margin of Error Percent)
State Upper Limit: 519,132,457 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 437,691,004 (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