taxes Property Tax Assistance

2019 Confidence Interval Detail

Erath County
072-903/Stephenville ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 160,842,430 0.9025 178,218,759 45 1950 0.025482871
A 178,260,410 0.9306 191,554,277 49 1308 0.009777669
A 210,047,010 0.9521 220,614,442 50 1136 0.016545069
A 211,259,280 0.9614 219,741,294 38 691 0.006166904
B 44,800,990 0.9649 46,430,708 9 174 0.002957157
B 39,744,900 0.9239 43,018,617 7 20 0.025942316
B 48,322,030 0.9692 49,857,645 3 6 0.002434636
E 316,285,710 0.9491 333,248,035 48 1833 0.007588956
F1 70,392,160 0.8801 79,982,002 10 357 0.048062352
F1 73,351,070 0.9060 80,961,446 9 149 0.021372675
F1 88,274,360 0.9789 90,177,097 10 70 0.027891100
F1 71,701,630 0.9443 75,930,986 6 13 0.019507391
L1 28,227,170 1.1191 25,223,099 12 407 0.011122943
L1 33,721,110 1.0533 32,014,725 11 109 0.005460876
L1 26,388,090 1.0415 25,336,620 8 31 0.003542891
L1 86,608,490 1.0024 86,404,042 6 14 0.000114596
Random Totals: 1,688,226,840 1,778,713,794 321 8,268
CATG B EXCEPTION VALUES: 37,897,010 42,653,137
CATG D1 EXCEPTION VALUES: 17,718,590 11,879,024
Total Test Values(2) 1,743,842,440 1,833,245,955

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 91,662,298

Confidence Interval Values(5)

Local Test Value: 1,743,842,440 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,741,583,657 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,924,908,253 (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