taxes Property Tax Assistance

2020 Confidence Interval Detail

Matagorda County
158-904/Matagorda ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 62,150,639 0.9048 68,689,919 15 511 0.037658597
A 53,779,111 0.9900 54,322,334 16 254 0.017142950
A 72,213,154 0.9100 79,355,114 16 246 0.073953699
A 60,914,751 1.1999 50,766,523 14 131 0.007779056
C1 5,779,743 0.9113 6,342,305 10 227 0.076020804
C1 12,393,613 0.8590 14,427,955 10 199 0.074787090
C1 7,258,680 1.1884 6,107,943 9 74 0.042646697
C1 8,958,740 1.0834 8,269,097 8 52 0.030574772
F1 5,074,723 0.8133 6,239,669 8 46 0.109434791
F1 4,636,570 0.7839 5,914,747 7 17 0.020884055
F1 5,075,360 0.6436 7,885,892 5 9 0.120729195
F1 6,083,940 0.8277 7,350,645 5 6 0.020294780
Random Totals: 304,319,024 315,672,143 123 1,772
CATG D1 EXCEPTION VALUES: 2,684,178 1,749,041
Total Test Values 307,003,202 317,421,184

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,871,059

Confidence Interval Values(5)

Local Test Value: 307,003,202 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 301,550,125 (State Test Value minus Margin of Error Percent)
State Upper Limit: 333,292,243 (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