taxes Property Tax Assistance

2018 Confidence Interval Detail

091/Grayson
091-908/Van Alstyne ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 86,813,550 0.9525 91,142,835 19 703 0.008566340
A 105,246,332 0.9736 108,100,177 39 509 0.004915953
A 132,461,445 0.9880 134,070,288 26 485 0.002514636
A 147,765,653 0.9803 150,735,135 19 362 0.005589550
E 127,191,607 0.9813 129,615,415 14 551 0.004449789
F1 12,726,734 0.9522 13,365,610 9 79 0.016627400
F1 12,065,454 0.7874 15,323,157 7 27 0.275064234
F1 9,631,754 1.0787 8,929,039 6 10 0.040248306
F1 18,071,620 1.0789 16,750,042 4 7 0.015941575
Random Totals: 651,974,149 668,031,698 143 2,733
CATG D1 EXCEPTION VALUES: 2,926,793 2,118,291
Total Test Values(1) 654,900,942 670,149,989

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 33,507,499

Confidence Interval Values(5)

Local Test Value: 654,900,942 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 636,642,490 (State Test Value minus Margin of Error Percent)
State Upper Limit: 703,657,488 (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