taxes Property Tax Assistance

2018 Confidence Interval Detail

125/Jim Wells
125-905/Premont ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 9,776,244 0.8122 12,036,745 15 315 .027600678
A 10,668,574 0.9294 11,478,991 15 200 .032116816
A 11,072,554 0.9067 12,211,927 15 152 .020601020
A 12,132,233 1.0466 11,592,044 15 101 .008205493
E 24,603,823 0.7900 31,144,080 20 530 .144516821
Random Totals: 68,253,428   78,463,787 80 1,298  
Catg J Exception Values: 3,407,720   3,762,365      
Catg D1 Exception Values: 5,795,644   5,760,980      
Total Test Values (4): 77,456,792   87,987,132      

Margin of Error

Margin of Error Percent: 6.1963879
Margin of Error Value: 5,452,024

Confidence Interval Values (5)

Local Test Value: 77,456,792 (Outside Confidence Interval)
State Lower Limit: 82,535,108 (State Test Value minus Margin of Error Percent)
State Upper Limit: 93,439,156 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 131,139,282 (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