taxes Property Tax Assistance

2020 Confidence Interval Detail

Matagorda County
158-901/Bay City ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 146,276,742 0.7300 200,379,099 37 2,040 0.087056648
A 136,436,080 0.8681 157,166,317 19 1,099 0.019879614
A 142,129,153 0.8842 160,743,218 26 857 0.034555770
A 168,299,078 0.9594 175,421,178 14 637 0.004797276
B 12,858,434 0.8702 14,776,412 12 26 0.020253155
F1 49,124,529 0.7763 63,280,341 10 348 0.038519125
F1 44,659,150 0.7540 59,229,642 10 96 0.247378083
F1 66,539,679 0.8414 79,082,100 10 43 0.160314122
F1 48,089,137 0.9964 48,262,883 5 8 0.042206230
Random Totals: 814,411,982 958,341,190 143 5,154
CATG B EXCEPTION VALUES: 55,769,857 58,708,775
CATG D1 EXCEPTION VALUES: 14,617,464 12,781,608
CATG J EXCEPTION VALUES: 27,940,560 24,894,801
Total Test Values 912,739,863 1,054,726,374

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,736,319

Confidence Interval Values(5)

Local Test Value: 912,739,863 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 1,001,990,055 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,107,462,693 (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