taxes Property Tax Assistance

2016 Confidence Interval Detail

178/Nueces
178-909/Robstown ISD

Category Summary

(1)
Category		 (1)
Local
Value		 (1)
Stratum
Ratio		 (1)
State
Value		 (2)
Sample
Size		 (3)
Total
Parcels
Stratum
Variance
A 42,912,713 1.1409 37,613,036 10 1,106 .038678222
A 80,096,795 1.0113 79,201,814 11 1,321 .045597081
A 84,993,236 1.0346 82,150,818 10 885 .057492461
A 77,273,979 1.0610 72,831,271 11 443 .040071513
F1 16,907,745 0.9680 17,466,679 11 164 .036337035
F1 20,462,460 0.8627 23,719,091 8 56 .045133947
F1 15,534,165 0.8881 17,491,459 8 19 .114855317
F1 37,431,844 1.2684 29,511,072 6 16 .050761032
L1 27,401,568 1.0180 26,917,061 8 63 .002373757
L1 17,142,607 1.0516 16,301,452 5 8 .001300273
L1 27,637,633 1.0578 26,127,465 4 6 .002337517
Random Totals: 447,794,745   429,331,218 92 4,087  
Catg J Exception Values: 8,740,280   8,879,447      
Catg D1 Exception Values: 15,746,944   16,869,879      
Catg L1 Exception Values: 67,055,717   68,465,914      
Total Test Values (4): 539,337,686   523,546,458      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,177,322

Confidence Interval Values (5)

State Lower Limit: 497,369,136 (State Test Value minus Margin of Error Percent)
Local Test Value: 539,337,686 (Within Confidence Interval)
State Upper Limit: 549,723,780 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 517,701,081 (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