taxes Property Tax Assistance

2016 Confidence Interval Detail

031/Cameron
031-909/Point Isabel ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	632,615,642	0.9765	647,839,879	88	4,583	.028680362
A	615,481,504	0.9555	644,146,001	38	2,364	.023460587
A	602,880,530	0.9876	610,450,111	21	1,479	.009130083
A	625,181,939	0.9707	644,052,683	9	788	.018763565
C1	54,696,209	1.2052	45,383,512	21	1,124	.105922620
C1	45,541,155	1.0306	44,188,972	12	379	.110097200
C1	53,956,183	1.1082	48,688,128	10	225	.033980750
C1	52,354,623	0.7484	69,955,402	8	39	.055453075
F1	79,727,566	1.0137	78,650,060	13	283	.118696757
F1	75,704,870	1.0429	72,590,728	9	85	.015581321
F1	79,446,834	1.0488	75,750,223	8	45	.031959740
F1	73,203,300	0.6744	108,545,819	6	13	.095717220
Random Totals:	2,990,790,355		3,090,241,518	243	11,407
Catg D1 Exception Values:	1,701,737		1,177,114
Total Test Values (4):	2,992,492,092		3,091,418,632

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	154,570,931

Confidence Interval Values (5)

State Lower Limit:	2,936,847,701	(State Test Value minus Margin of Error Percent)
Local Test Value:	2,992,492,092	(Within Confidence Interval)
State Upper Limit:	3,245,989,563	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	3,514,802,734	(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, D3, 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