taxes Property Tax Assistance

2016 Confidence Interval Detail

199/Rockwall
199-902/Royse City ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	123,620,883	0.9653	128,064,729	67	1,050	.014112027
A	204,479,659	0.9627	212,402,263	47	1,340	.004735484
A	234,744,040	0.9678	242,554,288	70	1,302	.007059440
A	283,724,804	0.9729	291,627,921	74	1,079	.026102372
E	77,755,940	0.9388	82,824,819	16	445	.044613704
F1	18,022,250	0.8280	21,766,002	11	87	.108296142
F1	15,392,427	0.9084	16,944,548	8	27	.021127305
F1	21,244,910	0.9229	23,019,731	8	18	.006222630
Random Totals:	978,984,913		1,019,204,301	301	5,348
Catg J Exception Values:	29,307,538		32,092,035
Catg D1 Exception Values:	1,719,482		1,444,577
Catg F1 Exception Values:	16,969,642		19,658,427
Total Test Values (4):	1,026,981,575		1,072,399,340

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	53,619,967

Confidence Interval Values (5)

State Lower Limit:	1,018,779,373	(State Test Value minus Margin of Error Percent)
Local Test Value:	1,026,981,575	(Within Confidence Interval)
State Upper Limit:	1,126,019,307	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	1,022,187,576	(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, D3, 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