taxes Property Tax Assistance

2018 Confidence Interval Detail

044/Collingsworth
044-902/Wellington ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 9,645,920 0.7382 13,066,811 14 416 0.065385804
A 10,253,380 0.8202 12,501,073 14 205 0.057939735
A 8,888,050 0.9077 9,791,837 12 105 0.020968091
A 10,302,520 1.0381 9,924,400 12 70 0.025959196
E 18,247,090 0.9905 18,422,100 11 732 0.107553158
F1 2,623,720 0.6230 4,211,429 9 87 0.181897421
F1 2,458,920 0.5875 4,185,396 7 20 0.041051642
F1 2,437,010 0.5987 4,070,503 5 11 0.065629261
F1 2,464,620 0.9409 2,619,428 3 4 0.008919531
Random Totals: 67,321,230 78,792,977 87 1,650
CATG D1 EXCEPTION VALUES: 34,798,760 43,968,966
CATG J EXCEPTION VALUES: 4,134,720 4,278,610
Total Test Values(2) 106,254,710 127,040,553

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,352,028

Confidence Interval Values(5)

Local Test Value: 106,254,710 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 120,688,525 (State Test Value minus Margin of Error Percent)
State Upper Limit: 133,392,581 (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