taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 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 8,382,860 0.9754 8,594,279 10 436 .107735680
A 8,592,600 0.9394 9,146,902 10 196 .008260201
A 8,393,230 0.8129 10,325,046 9 119 .082136624
A 8,398,270 0.9863 8,514,924 10 68 .005630325
D2 7,574,940 0.9726 7,788,341 10 404 .002715168
E 10,444,670 0.9498 10,996,705 16 283 .068714204
F1 1,481,680 0.8663 1,710,354 9 84 .027186628
F1 1,626,230 0.9105 1,786,085 7 26 .017140700
F1 1,528,930 0.9470 1,614,498 5 9 .008564690
F1 1,438,740 1.0494 1,371,012 2 3 .000695573
L1 1,447,910 1.0072 1,437,560 8 40 .017837259
L1 1,391,090 0.9643 1,442,590 4 6 .007205231
L1 977,060 0.9798 997,204 3 3 .000530855
Random Totals: 61,678,210   65,725,500 103 1,677  
Catg J Exception Values: 426,930   347,996      
Catg D1 Exception Values: 32,500,860   32,936,754      
Catg L1 Exception Values: 1,952,270   2,022,296      
Total Test Values (4): 96,558,270   101,032,546      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,051,627

Confidence Interval Values (5)

State Lower Limit: 95,980,919 (State Test Value minus Margin of Error Percent)
Local Test Value: 96,558,270 (Within Confidence Interval)
State Upper Limit: 106,084,173 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 114,580,279 (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