taxes Property Tax Assistance

2019 Confidence Interval Detail

Erath County
018-906/Iredell ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
E 7,313,670 1.0392 7,037,789 7 53 0.027913481
Random Totals: 7,313,670 7,037,789 7 53
CATG D1 EXCEPTION VALUES: 1,404,560 946,570
CATG F1 EXCEPTION VALUES: 10,425,900 11,472,806
CATG J EXCEPTION VALUES: 539,510 498,849
Total Test Values(3) 19,683,640 19,956,014

Margin of Error

Margin of Error Percent: 5.0727130
Margin of Error Value: 1,012,311

Confidence Interval Values(5)

Local Test Value: 19,683,640 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 18,943,703 (State Test Value minus Margin of Error Percent)
State Upper Limit: 20,968,325 (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