taxes Property Tax Assistance

2016 Confidence Interval Detail

020/Brazoria
020-907/Columbia-Brazoria ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	147,917,633	0.8958	165,123,502	36	1,956	.031671892
A	186,535,137	0.9779	190,750,728	43	1,468	.016177315
A	227,306,120	0.9775	232,538,230	31	1,237	.014586945
A	231,398,168	0.9448	244,917,621	35	765	.011585995
E	111,499,849	0.9330	119,506,805	16	1,488	.086628876
F1	16,437,789	1.0457	15,719,412	13	173	.048167137
F1	17,512,082	0.9841	17,795,023	10	69	.019056205
F1	12,841,890	0.9007	14,257,677	7	22	.025045391
F1	26,866,630	0.9973	26,939,366	6	21	.029052193
Random Totals:	978,315,298		1,027,548,364	197	7,199
Catg J Exception Values:	33,030,430		34,248,290
Catg D1 Exception Values:	8,319,570		7,593,521
Total Test Values (4):	1,019,665,298		1,069,390,175

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	53,469,508

Confidence Interval Values (5)

State Lower Limit:	1,015,920,667	(State Test Value minus Margin of Error Percent)
Local Test Value:	1,019,665,298	(Within Confidence Interval)
State Upper Limit:	1,122,859,683	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	1,149,814,907	(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