taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
157/Mason
157-901/Mason ISD

Category Summary

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

Stratum
Variance
A 27,355,610 0.9846 27,783,476 7 402 .000802854
A 26,053,480 1.0219 25,495,137 10 245 .020668639
A 26,381,700 0.9861 26,753,575 6 171 .071712892
A 28,479,540 1.0567 26,951,396 8 106 .023514501
E 138,041,240 0.9545 144,621,519 11 1,841 .053318967
F1 6,445,720 1.0769 5,985,440 10 95 .044353516
F1 6,277,780 1.1573 5,424,505 8 41 .056717603
F1 6,395,520 1.1513 5,555,042 7 24 .012486849
F1 6,157,610 0.9963 6,180,478 5 11 .023303269
Random Totals: 271,588,200   274,750,568 72 2,936  
Catg J Exception Values: 2,992,460   2,945,049      
Catg D1 Exception Values: 40,473,710   33,592,338      
Total Test Values (4): 315,054,370   311,287,955      

Margin of Error

Margin of Error Percent: 6.8079162
Margin of Error Value: 21,192,223

Confidence Interval Values (5)

State Lower Limit: 290,095,732 (State Test Value minus Margin of Error Percent)
Local Test Value: 315,054,370 (Within Confidence Interval)
State Upper Limit: 332,480,178 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 325,413,180 (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