taxes Property Tax Assistance

2017 Confidence Interval Detail

126/Johnson
126-901/Alvarado ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	88,594,657	0.7445	118,998,868	21	1,789	.085399459
A	83,174,389	0.8180	101,680,182	43	930	.084141333
A	113,119,001	0.9143	123,721,974	63	796	.037240401
A	119,183,523	0.9664	123,327,321	54	457	.038486000
E	273,083,972	0.8482	321,957,053	33	3,015	.105656160
F1	27,784,938	0.7331	37,900,611	10	157	.260604351
F1	24,780,026	0.9499	26,086,984	9	59	.043153944
F1	26,747,463	0.9286	28,804,074	7	29	.016033378
F1	32,904,406	0.8997	36,572,642	6	15	.082175112
G1	35,425,928	1.0466	33,848,584	9	174	.025226638
G1	35,631,847	1.0248	34,769,562	9	69	.002038886
G1	34,861,935	1.0372	33,611,584	8	47	.015656112
G1	35,060,111	1.0117	34,654,652	7	29	.000612835
L1	24,008,344	0.9712	24,720,288	9	135	.008873301
L1	47,596,704	0.8618	55,229,408	12	29	.089005180
Random Totals:	1,001,957,244		1,135,883,787	300	7,730
Catg J Exception Values:	9,084,014		8,303,510
Catg D1 Exception Values:	5,148,532		4,140,295
Total Test Values (4):	1,016,189,790		1,148,327,592

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	57,416,379

Confidence Interval Values (5)

Local Test Value:	1,016,189,790	(Outside Confidence Interval)
State Lower Limit:	1,090,911,213	(State Test Value minus Margin of Error Percent)
State Upper Limit:	1,205,743,971	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	1,214,385,793	(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