taxes Property Tax Assistance

2018 Confidence Interval Detail

236/Walker
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	331,667,858	0.8808	376,552,972	55	3,947	.043073259
A	374,051,241	0.9656	387,377,010	84	2,446	.014091557
A	394,661,412	0.9785	403,333,073	81	1,873	.009639184
A	389,493,648	0.9932	392,160,338	43	1,140	.015628160
B	79,340,131	0.9479	83,700,951	17	257	.005588362
B	106,627,030	0.8303	128,419,884	6	21	.026151225
E	347,445,670	0.7935	437,864,739	29	2,959	.086770671
F1	93,847,975	0.8822	106,379,477	15	385	.041383353
F1	97,688,812	0.9603	101,727,389	12	136	.015431912
F1	100,690,866	0.9628	104,581,290	10	53	.039916997
F1	114,198,336	1.0051	113,618,880	7	19	.006839802
Random Totals:	2,429,712,979		2,635,716,003	359	13,236
Catg D1 Exception Values:	38,829,147		36,749,092
Catg B Exception Values:	143,946,400		175,871,917
Total Test Values (4):	2,612,488,526		2,848,337,012

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	142,416,850

Confidence Interval Values (5)

Local Test Value:	2,612,488,526	(Outside Confidence Interval)
State Lower Limit:	2,705,920,162	(State Test Value minus Margin of Error Percent)
State Upper Limit:	2,990,753,862	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	2,886,719,711	(See ISD Summary Worksheet)

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
(6) Includes local value of unstudied property categories and sub-categories