taxes Property Tax Assistance

2019 Confidence Interval Detail

Tarrant County
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 98,215,589 0.9234 106,362,994 18 1178 0.043354895
A 142,503,392 0.9529 149,547,058 20 1305 0.014075444
A 210,732,193 0.9976 211,239,167 39 1517 0.016070962
A 339,190,089 1.0058 337,234,131 80 1554 0.025917714
B 10,983,024 0.6631 16,563,149 9 115 0.013745440
B 9,491,345 0.9148 10,375,322 10 35 0.040988025
B 10,550,957 0.8379 12,592,143 2 5 0.033684644
B 51,200,000 0.9388 54,539,845 1 1 0.000000000
F1 22,094,176 0.7715 28,637,947 9 106 0.084931053
F1 27,289,588 0.8430 32,371,991 9 50 0.029447244
F1 25,365,421 0.7698 32,950,664 6 20 0.040866359
F1 38,984,024 0.9189 42,425,126 8 9 0.090727906
Random Totals: 986,599,798 1,034,839,537 211 5,895
CATG B EXCEPTION VALUES: 13,830,000 15,922,538
CATG D1 EXCEPTION VALUES: 1,446 1,816
Total Test Values(2) 1,000,431,244 1,050,763,891

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,538,195

Confidence Interval Values(5)

Local Test Value: 1,000,431,244 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 998,225,696 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,103,302,086 (State Test Value plus Margin of Error Percent)

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