taxes Property Tax Assistance

2019 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 379,307,833 0.8833 429,421,299 64 4199 0.044860133
A 379,154,801 0.9647 393,028,715 67 2361 0.010233890
A 440,087,404 1.0006 439,823,510 71 2033 0.008614318
A 556,305,653 1.0163 547,383,305 55 1558 0.006429841
B 103,641,222 0.8243 125,732,406 10 170 0.112218588
B 109,090,590 1.0220 106,742,260 5 13 0.022082135
B 81,514,640 0.9292 87,725,613 3 4 0.007393682
B 108,730,860 0.9694 112,166,282 3 7 0.002913878
E 290,084,391 0.9386 309,060,719 17 2014 0.014916353
F1 105,908,405 0.9209 115,005,326 12 398 0.110189198
F1 118,320,855 0.9835 120,305,902 11 145 0.015032552
F1 128,250,711 0.8790 145,905,246 8 57 0.030286514
F1 118,418,766 0.9723 121,792,416 6 17 0.002540457
Random Totals: 2,918,816,131 3,054,092,999 332 12,976
CATG D1 EXCEPTION VALUES: 40,699,743 37,288,424
Total Test Values(1) 2,959,515,874 3,091,381,423

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 154,569,071

Confidence Interval Values(5)

Local Test Value: 2,959,515,874 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 2,936,812,352 (State Test Value minus Margin of Error Percent)
State Upper Limit: 3,245,950,494 (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