taxes Property Tax Assistance

2017 Confidence Interval Detail

245/Willacy
245-904/San Perlita ISD

Category Summary

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

Stratum
Variance
A 14,869,184 0.9841 15,109,424 16 326 .020872580
A 12,552,561 1.0729 11,699,656 16 122 .010169579
A 11,865,210 1.1108 10,681,680 15 73 .023265875
A 11,568,794 1.0528 10,988,596 16 45 .051837739
Random Totals: 50,855,749   48,479,356 63 566  
Catg J Exception Values: 4,094,460   4,165,321      
Catg D1 Exception Values: 14,589,491   15,998,595      
Total Test Values (4): 69,539,700   68,643,272      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,432,163

Confidence Interval Values (5)

State Lower Limit: 65,211,109 (State Test Value minus Margin of Error Percent)
Local Test Value: 69,539,700 (Within Confidence Interval)
State Upper Limit: 72,075,435 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 93,648,274 (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