taxes Property Tax Assistance

2018 Confidence Interval Detail

218/Sutton
218-901/Sonora ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	23,874,254	0.9905	24,103,235	17	457	.016622588
A	22,814,070	0.9642	23,661,139	15	251	.007277753
A	23,368,500	0.9592	24,362,490	15	173	.011416881
A	23,650,320	0.9499	24,897,694	15	98	.003933296
E	89,367,842	0.9511	93,962,614	20	834	.024241444
F1	9,211,184	0.9542	9,653,305	9	104	.006407610
F1	9,382,290	0.9520	9,855,347	8	37	.016655382
F1	10,846,249	0.9526	11,385,943	4	8	.000855415
G1	22,313,427	1.0072	22,153,919	14	2,598	.009749058
G1	22,316,018	0.9940	22,450,722	14	1,227	.016631414
G1	22,337,432	0.9572	23,336,222	14	540	.035651076
G1	22,261,357	0.9903	22,479,407	13	194	.018291252
Random Totals:	301,742,943		312,302,037	158	6,521
Catg J Exception Values:	5,857,010		7,946,903
Catg D1 Exception Values:	31,622,130		28,607,526
Catg F1 Exception Values:	7,645,470		7,694,027
Total Test Values (4):	346,867,553		356,550,493

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	17,827,524

Confidence Interval Values (5)

State Lower Limit:	338,722,969	(State Test Value minus Margin of Error Percent)
Local Test Value:	346,867,553	(Within Confidence Interval)
State Upper Limit:	374,378,017	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	531,686,866	(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