taxes Property Tax Assistance

2018 Confidence Interval Detail

091/Grayson
091-909/Whitesboro ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	82,682,887	1.0524	78,566,027	26	1,250	.043136826
A	95,146,443	0.9759	97,496,099	31	815	.012795888
A	104,232,513	0.9834	105,991,980	27	542	.003793880
A	108,686,999	1.0140	107,186,390	15	278	.004007954
C1	10,604,471	0.9294	11,410,018	8	400	.038251320
C1	13,533,581	0.9173	14,753,713	6	282	.254097011
C1	15,677,547	0.9958	15,743,670	6	193	.001816722
C1	17,148,607	0.9113	18,817,741	6	97	.017063452
E	162,073,979	1.0159	159,537,335	18	1,048	.006928218
F1	19,530,553	0.8966	21,782,905	17	121	.037953923
F1	16,495,456	0.7050	23,397,810	9	31	.145922574
F1	17,327,809	1.1037	15,699,745	7	17	.024374964
Random Totals:	663,140,845		670,383,433	176	5,074
Catg D1 Exception Values:	3,994,111		2,695,485
Catg F1 Exception Values:	11,190,485		15,936,689
Total Test Values (4):	678,325,441		689,015,607

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	34,450,780

Confidence Interval Values (5)

State Lower Limit:	654,564,827	(State Test Value minus Margin of Error Percent)
Local Test Value:	678,325,441	(Within Confidence Interval)
State Upper Limit:	723,466,387	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	749,076,744	(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