taxes Property Tax Assistance

2019 Confidence Interval Detail

Erath County
072-910/Morgan Mill ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 3,410,240 0.7993 4,266,533 8 49 0.098050005
A 3,262,910 0.9971 3,272,400 7 25 0.009343901
A 3,262,190 0.9500 3,433,884 6 14 0.007805928
A 4,236,960 0.9723 4,357,667 5 13 0.002881411
E 70,293,890 0.9309 75,511,752 19 375 0.012861265
Random Totals: 84,466,190 90,842,236 45 476
CATG D1 EXCEPTION VALUES: 5,682,230 3,772,041
CATG J EXCEPTION VALUES: 9,499,980 9,755,986
Total Test Values(2) 99,648,400 104,370,263

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,218,513

Confidence Interval Values(5)

Local Test Value: 99,648,400 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 99,151,750 (State Test Value minus Margin of Error Percent)
State Upper Limit: 109,588,776 (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