taxes Property Tax Assistance

2018 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 70,629,405 0.9344 75,587,976 7 1,571 .004864699
A 67,075,883 0.9785 68,549,702 7 958 .031950868
A 67,229,432 0.9469 70,999,506 7 638 .017063479
A 73,675,226 0.9713 75,852,184 7 389 .003740788
F1 20,483,996 0.8659 23,656,307 7 44 .071772527
F1 18,211,344 0.6799 26,785,327 8 20 .061990988
F1 28,446,639 1.1050 25,743,565 5 13 .088333867
L1 44,769,929 1.0988 40,744,384 7 121 .013364421
L1 26,343,705 1.0339 25,479,935 5 8 .013066960
Random Totals: 416,865,559   433,398,886 60 3,762  
Catg J Exception Values: 7,980,200   8,062,177      
Catg D1 Exception Values: 16,310,832   16,653,227      
Catg F1 Exception Values: 35,674,761   41,721,354      
Catg L1 Exception Values: 60,456,244   59,474,396      
Total Test Values (4): 537,287,596   559,310,040      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 27,965,502

Confidence Interval Values (5)

State Lower Limit: 531,344,538 (State Test Value minus Margin of Error Percent)
Local Test Value: 537,287,596 (Within Confidence Interval)
State Upper Limit: 587,275,542 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 589,200,105 (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