taxes Property Tax Assistance

2017 Confidence Interval Detail

152/Lubbock
152-910/Idalou ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	29,841,147	0.9047	32,984,577	18	407	.101882650
A	29,862,767	0.9388	31,809,509	15	212	.037928782
A	31,467,629	0.9409	33,444,180	15	161	.020470911
A	35,654,540	1.1392	31,297,876	15	109	.023487834
E	33,703,179	0.8248	40,862,244	18	341	.129162844
F1	4,301,263	0.8672	4,959,943	9	47	.023219811
F1	4,291,560	0.9210	4,659,674	6	14	.032517228
F1	5,349,896	1.0970	4,876,842	4	7	.012303387
L1	11,520,616	0.9663	11,922,401	9	66	.035866779
L1	15,190,358	0.9813	15,479,831	6	18	.048956518
L1	8,531,032	0.8792	9,703,176	4	5	.034437953
L1	18,542,369	0.9812	18,897,645	2	6	.000315666
Random Totals:	228,256,356		240,897,898	121	1,393
Catg D1 Exception Values:	14,545,922		11,932,178
Catg F1 Exception Values:	3,067,905		3,005,187
Total Test Values (4):	245,870,183		255,835,263

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	12,791,763

Confidence Interval Values (5)

State Lower Limit:	243,043,500	(State Test Value minus Margin of Error Percent)
Local Test Value:	245,870,183	(Within Confidence Interval)
State Upper Limit:	268,627,026	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	242,395,777	(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