taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
091/Grayson
091-908/Van Alstyne ISD

Category Summary

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

Stratum
Variance
A 60,633,550 0.9495 63,858,399 24 714 .025155535
A 58,153,747 0.9676 60,101,020 31 410 .009820387
A 59,756,001 0.9569 62,447,488 19 313 .010366306
A 96,069,729 1.0068 95,420,867 27 334 .003336392
E 73,463,998 0.9665 76,010,345 15 507 .005863451
F1 9,164,365 1.0219 8,967,967 10 73 .068510458
F1 10,359,308 0.9256 11,191,992 9 28 .013325762
F1 8,008,875 0.8566 9,349,609 6 9 .156823197
Random Totals: 375,609,573   387,347,687 141 2,388  
Catg J Exception Values: 17,282,343   18,805,957      
Catg D1 Exception Values: 3,047,821   2,609,833      
Catg F1 Exception Values: 9,786,254   9,862,366      
Total Test Values (4): 405,725,991   418,625,843      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 20,931,292

Confidence Interval Values (5)

State Lower Limit: 397,694,551 (State Test Value minus Margin of Error Percent)
Local Test Value: 405,725,991 (Within Confidence Interval)
State Upper Limit: 439,557,135 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 461,656,024 (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