taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
044/Collingsworth
044-902/Wellington ISD

Category Summary

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

Stratum
Variance
A 9,882,480 1.0307 9,588,125 12 461 .064346178
A 10,942,600 0.9228 11,858,041 11 212 .018046551
A 8,739,810 0.9922 8,808,516 10 100 .003354114
A 11,125,410 1.0316 10,784,616 11 77 .012914566
E 15,269,620 0.8307 18,381,630 14 334 .016830444
Random Totals: 55,959,920   59,420,928 58 1,184  
Catg J Exception Values: 15,494,360   15,277,681      
Catg D1 Exception Values: 31,102,170   32,773,858      
Total Test Values (4): 102,556,450   107,472,467      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,373,623

Confidence Interval Values (5)

State Lower Limit: 102,098,844 (State Test Value minus Margin of Error Percent)
Local Test Value: 102,556,450 (Within Confidence Interval)
State Upper Limit: 112,846,090 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 153,295,138 (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