taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
091/Grayson
091-905/Howe ISD

Category Summary

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

Stratum
Variance
A 32,404,676 0.9656 33,559,109 15 465 .014337099
A 30,804,700 0.9553 32,246,101 15 288 .009868393
A 33,617,519 0.9195 36,560,651 15 229 .020142051
A 35,300,315 0.9501 37,154,315 15 155 .008704014
E 40,571,757 0.9378 43,262,697 14 351 .031699806
F1 3,155,823 0.9012 3,501,801 9 32 .094204694
F1 3,297,276 0.9561 3,448,673 6 12 .005519451
F1 2,925,422 0.9915 2,950,501 5 6 .000541171
Random Totals: 182,077,488   192,683,848 94 1,538  
Catg J Exception Values: 8,178,845   8,429,962      
Catg D1 Exception Values: 5,387,762   4,814,012      
Catg F1 Exception Values: 3,620,919   3,612,392      
Total Test Values (4): 199,265,014   209,540,214      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,477,010

Confidence Interval Values (5)

State Lower Limit: 199,063,204 (State Test Value minus Margin of Error Percent)
Local Test Value: 199,265,014 (Within Confidence Interval)
State Upper Limit: 220,017,224 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 211,444,981 (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