taxes Property Tax Assistance

2017 Confidence Interval Detail

252/Young
252-901/Graham ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	79,274,340	0.9697	81,751,408	23	1,538	.024680769
A	78,340,150	0.9978	78,512,878	28	796	.008927087
A	88,642,059	0.9910	89,447,083	22	585	.007759745
A	80,164,031	1.0389	77,162,413	10	288	.004705814
E	144,685,269	0.9504	152,236,184	20	2,032	.019777162
F1	20,278,021	0.8594	23,595,556	10	263	.033186478
F1	20,013,700	0.8786	22,779,080	9	93	.043521268
F1	20,801,220	0.8278	25,128,316	7	30	.065110639
F1	22,612,730	0.9365	24,146,001	4	7	.008763016
L1	11,414,850	0.9740	11,719,559	11	234	.116796883
L1	12,698,900	0.8888	14,287,691	8	58	.057655117
L1	12,899,460	1.0450	12,343,981	7	16	.010212169
L1	11,261,580	1.0002	11,259,328	2	3	.000000031
Random Totals:	603,086,310		624,369,478	161	5,943
Catg J Exception Values:	3,342,090		3,448,244
Catg D1 Exception Values:	26,610,987		19,667,487
Total Test Values (4):	633,039,387		647,485,209

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	32,374,260

Confidence Interval Values (5)

State Lower Limit:	615,110,949	(State Test Value minus Margin of Error Percent)
Local Test Value:	633,039,387	(Within Confidence Interval)
State Upper Limit:	679,859,469	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	678,585,770	(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