taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
246/Williamson
246-914/Coupland ISD

Category Summary

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

Stratum
Variance
A 3,867,577 0.9550 4,049,819 14 64 .004761363
A 4,136,412 1.0382 3,984,215 12 43 .008045544
A 3,883,595 1.0188 3,811,931 11 27 .006268437
A 5,104,651 0.9996 5,106,694 8 19 .001469752
E 24,455,163 0.9876 24,762,214 14 332 .005314826
Random Totals: 41,447,398   41,714,873 59 485  
Catg J Exception Values: 2,897,897   3,020,497      
Catg D1 Exception Values: 7,666,496   6,807,476      
Total Test Values (4): 52,011,791   51,542,846      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,577,142

Confidence Interval Values (5)

State Lower Limit: 48,965,704 (State Test Value minus Margin of Error Percent)
Local Test Value: 52,011,791 (Within Confidence Interval)
State Upper Limit: 54,119,988 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 57,374,108 (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