taxes Property Tax Assistance

2021 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 130,849,028 1.0064 130,016,920 15 1,781 0.072068828
A 136,143,839 1.0237 132,991,930 15 1,070 0.026021370
A 249,602,095 1.0168 245,478,064 17 1,429 0.003462692
A 191,579,707 1.0034 190,930,543 15 698 0.009806410
B 14,596,592 0.7893 18,493,085 14 28 0.179281282
B 39,408,852 1.0663 36,958,503 1 3 0.000000000
F1 54,267,568 0.8962 60,552,966 18 357 0.074859913
F1 63,205,372 1.0507 60,155,489 16 111 0.058960811
F1 54,161,160 0.7799 69,446,288 16 32 0.207324812
F1 41,110,302 1.0030 40,987,340 6 7 0.003424884
L1 14,733,040 0.9918 14,854,850 10 241 0.005056048
L1 13,759,469 0.9779 14,070,425 10 57 0.018940687
L1 15,650,070 0.9854 15,881,946 7 19 0.002590320
L1 13,763,400 0.9472 14,530,617 4 5 0.016214468
Random Totals: 1,032,830,494 1,045,348,966 164 5,838
CATG B EXCEPTION VALUES: 38,553,375 43,125,185
CATG D1 EXCEPTION VALUES: 14,287,878 12,748,492
CATG J EXCEPTION VALUES: 44,052,420 46,645,548
Total Test Values 1,129,724,167 1,147,868,191

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 57,393,410

Confidence Interval Values(5)

Local Test Value: 1,129,724,167 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,090,474,781 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,205,261,601 (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