taxes Property Tax Assistance

2021 Confidence Interval Detail

Walker County
236-902/Huntsville ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 431,938,540 0.9303 464,300,269 38 4,284 0.023993240
A 481,810,590 0.9833 489,993,481 37 2,673 0.009489833
A 558,315,968 0.9910 563,386,446 44 2,248 0.006307522
A 641,728,013 1.0099 635,437,185 40 1,512 0.003648944
B 148,725,874 1.0148 146,556,833 10 148 0.065548711
B 139,616,674 0.9214 151,526,670 6 12 0.048483565
B 106,298,806 0.9398 113,107,902 4 5 0.125689740
C1 56,286,946 0.9110 61,785,890 45 2,235 0.104138588
C1 31,375,919 0.9310 33,701,309 20 414 0.040882693
C1 100,439,854 1.0273 97,770,714 31 941 0.024916233
C1 76,236,067 0.9440 80,758,546 18 307 0.068558260
E 332,284,454 0.9250 359,226,437 14 2,085 0.028906431
F1 131,417,824 1.0029 131,037,814 10 409 0.009003401
F1 128,562,390 0.9895 129,926,620 11 136 0.017378886
F1 132,405,671 0.9180 144,232,757 10 60 0.005247306
F1 149,647,364 0.9104 164,375,400 7 21 0.009766565
Random Totals: 3,647,090,954 3,767,124,273 345 17,490
CATG B EXCEPTION VALUES: 238,568,656 266,604,902
CATG D1 EXCEPTION VALUES: 40,559,836 33,367,560
Total Test Values 3,926,219,446 4,067,096,735

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 203,354,837

Confidence Interval Values(5)

Local Test Value: 3,926,219,446 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 3,863,741,898 (State Test Value minus Margin of Error Percent)
State Upper Limit: 4,270,451,572 (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