taxes Property Tax Assistance

2018 Confidence Interval Detail

091/Grayson
091-918/Tom Bean ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 34,004,323 0.9455 35,964,382 12 370 0.051234339
A 46,309,242 0.9930 46,635,692 13 307 0.000688523
A 47,812,362 0.9628 49,659,703 10 227 0.003524027
A 48,976,755 0.9863 49,657,057 8 155 0.001463130
E 88,801,858 0.9859 90,071,871 10 595 0.007013730
Random Totals: 265,904,540 271,988,705 53 1,654
CATG D1 EXCEPTION VALUES: 2,828,750 2,039,252
Total Test Values(1) 268,733,290 274,027,957

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,701,398

Confidence Interval Values(5)

Local Test Value: 268,733,290 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 260,326,559 (State Test Value minus Margin of Error Percent)
State Upper Limit: 287,729,355 (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