taxes Property Tax Assistance

2017 Confidence Interval Detail

125/Jim Wells
125-901/Alice ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	95,234,764	0.7255	131,267,766	16	2,384	.025336033
A	94,870,182	0.9081	104,471,074	12	1,303	.056114213
A	95,718,534	0.9474	101,032,863	15	786	.037824222
A	96,164,555	1.0418	92,306,158	15	490	.019971530
E	165,463,284	0.8282	199,786,626	19	3,087	.190805991
F1	35,800,737	0.9584	37,354,692	11	330	.026896587
F1	38,465,780	1.0329	37,240,565	9	99	.069726492
F1	33,273,900	1.0270	32,399,124	8	33	.037198505
F1	35,857,515	1.0167	35,268,531	4	8	.015746160
L1	21,169,222	0.9615	22,016,872	9	368	.002274493
L1	18,416,178	0.9247	19,915,841	10	82	.027845081
L1	16,265,797	0.9827	16,552,149	8	24	.000317622
L1	18,680,740	0.9697	19,264,453	3	5	.011189271
Random Totals:	765,381,188		848,876,714	139	8,999
Catg J Exception Values:	30,427,150		30,527,186
Catg D1 Exception Values:	19,837,563		21,887,295
Total Test Values (4):	815,645,901		901,291,195

Margin of Error

Margin of Error Percent:	5.0211309
Margin of Error Value:	45,255,011

Confidence Interval Values (5)

Local Test Value:	815,645,901	(Outside Confidence Interval)
State Lower Limit:	856,036,184	(State Test Value minus Margin of Error Percent)
State Upper Limit:	946,546,206	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	1,114,368,450	(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