taxes Property Tax Assistance

2017 Confidence Interval Detail

228/Trinity
228-903/Trinity ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	61,000,702	0.9622	63,397,113	30	1,430	.080474530
A	60,445,769	0.9620	62,833,440	20	696	.031695676
A	61,632,931	0.9395	65,601,842	19	442	.022215637
A	69,848,247	1.0101	69,149,834	16	254	.013569153
C1	8,041,358	0.7658	10,500,598	10	2,975	.193771227
C1	7,699,013	1.0328	7,454,505	11	1,790	.211498225
C1	7,900,005	0.9648	8,188,231	11	1,239	.155136432
C1	7,963,266	0.9129	8,723,043	15	386	.127712153
E	49,674,292	0.9334	53,218,654	18	570	.153718080
F1	8,706,653	1.0477	8,310,254	9	106	.003602676
F1	8,673,902	1.0063	8,619,599	8	37	.005173652
F1	18,813,817	0.9627	19,542,762	10	18	.044794769
Random Totals:	370,399,955		385,539,875	177	9,943
Catg J Exception Values:	15,353,560		15,314,668
Catg D1 Exception Values:	7,456,394		7,109,916
Total Test Values (4):	393,209,909		407,964,459

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	20,398,222

Confidence Interval Values (5)

State Lower Limit:	387,566,237	(State Test Value minus Margin of Error Percent)
Local Test Value:	393,209,909	(Within Confidence Interval)
State Upper Limit:	428,362,681	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	360,246,214	(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