taxes Property Tax Assistance

2018 Confidence Interval Detail

152/Lubbock
152-908/Roosevelt ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	33,122,829	0.8208	40,354,324	12	495	.164033322
A	44,239,515	0.9225	47,956,114	20	283	.012470988
A	48,170,520	1.0145	47,482,031	15	215	.028941104
A	40,042,645	1.1388	35,162,140	14	104	.015990224
E	25,233,916	0.9689	26,043,881	16	358	.145186341
F1	3,631,770	0.9567	3,796,143	8	45	.054871176
F1	3,971,622	0.8324	4,771,290	7	21	.063371767
F1	2,479,219	0.9837	2,520,300	5	6	.020546021
F1	3,668,455	0.9664	3,796,001	4	6	.001192056
G1	19,120,488	1.0565	18,097,954	8	47	.007053284
Random Totals:	223,680,979		229,980,178	109	1,580
Catg D1 Exception Values:	17,731,703		13,732,381
Catg F1 Exception Values:	4,272,029		4,454,888
Total Test Values (4):	245,684,711		248,167,447

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	12,408,372

Confidence Interval Values (5)

State Lower Limit:	235,759,075	(State Test Value minus Margin of Error Percent)
Local Test Value:	245,684,711	(Within Confidence Interval)
State Upper Limit:	260,575,819	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	239,809,764	(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