taxes Property Tax Assistance

2018 Confidence Interval Detail

237/Waller
237-905/Royal ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	59,837,152	0.7895	75,791,199	11	803	.082945847
A	70,743,629	0.8411	84,108,464	11	517	.054421934
A	63,315,877	0.9848	64,293,133	9	282	.057008752
A	71,454,486	0.9676	73,847,133	11	198	.011001812
E	209,754,723	0.9514	220,469,543	18	1,412	.044543682
F1	32,583,614	0.8700	37,452,430	12	122	.089437934
F1	33,071,840	1.0278	32,177,311	8	42	.003578927
F1	31,480,070	0.9267	33,970,077	7	19	.084521648
F1	35,058,309	0.9273	37,806,868	4	7	.006189506
L1	46,128,500	0.5938	77,683,563	9	91	.399552181
L1	49,113,650	0.9732	50,466,143	8	19	.267949390
Random Totals:	702,541,850		788,065,864	108	3,512
Catg D1 Exception Values:	12,322,026		9,699,930
Catg F1 Exception Values:	51,828,170		52,328,196
Catg L1 Exception Values:	159,272,510		175,798,640
Total Test Values (4):	925,964,556		1,025,892,630

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	51,294,631

Confidence Interval Values (5)

Local Test Value:	925,964,556	(Outside Confidence Interval)
State Lower Limit:	974,597,999	(State Test Value minus Margin of Error Percent)
State Upper Limit:	1,077,187,261	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	1,200,744,470	(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