taxes Property Tax Assistance

2018 Confidence Interval Detail

079/Fort Bend
101-914/Katy ISD

Category Summary

(1) Category	(1) Local Value	(1) Stratum Ratio	(1) State Value	(2) Sample Size	(3) Total Parcels	Stratum Variance
A	3,090,388,751	0.9738	3,173,535,378	50	11,568	.003288793
A	3,050,928,101	0.9562	3,190,679,880	50	8,895	.010633461
A	3,280,972,028	0.9719	3,375,832,933	50	7,715	.006816775
A	3,193,535,869	0.9744	3,277,438,289	50	5,150	.012524478
B	615,742,588	0.8294	742,395,211	7	32	.022583800
F1	1,372,486,258	0.8516	1,611,656,010	15	364	.058864312
L1	71,404,977	1.0200	70,004,879	8	1,237	.021790513
L1	66,996,104	0.9907	67,625,017	8	227	.017204506
L1	71,787,390	0.9612	74,685,175	8	70	.017946176
L1	73,483,750	0.9492	77,416,509	6	16	.010816770
Random Totals:	14,887,725,816		15,661,269,281	252	35,274
Catg D1 Exception Values:	454,620		431,243
Total Test Values (4):	14,888,180,436		15,661,700,524

Margin of Error

Margin of Error Percent:	5.0000000
Margin of Error Value:	783,085,026

Confidence Interval Values (5)

State Lower Limit:	14,878,615,498	(State Test Value minus Margin of Error Percent)
Local Test Value:	14,888,180,436	(Within Confidence Interval)
State Upper Limit:	16,444,785,550	(State Test Value plus Margin of Error Percent)
Value Assigned (6):	15,082,463,874	(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