taxes Property Tax Assistance

2018 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 42,087,162 0.9127 46,112,810 15 435 .015227523
A 50,816,546 0.9861 51,532,853 21 323 .001285663
A 68,217,522 1.0017 68,101,749 24 318 .001949867
A 78,114,427 1.0068 77,586,837 15 242 .001483999
E 65,350,612 1.0304 63,422,566 11 369 .005140274
F1 6,114,874 0.7578 8,069,245 10 69 .061379394
F1 4,124,809 0.9678 4,262,047 6 12 .006251852
Random Totals: 314,825,952   319,088,107 102 1,768  
Catg J Exception Values: 15,371,467   16,915,968      
Catg D1 Exception Values: 5,440,861   4,068,846      
Catg F1 Exception Values: 8,020,750   10,247,208      
Total Test Values (4): 343,659,030   350,320,129      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,516,006

Confidence Interval Values (5)

State Lower Limit: 332,804,123 (State Test Value minus Margin of Error Percent)
Local Test Value: 343,659,030 (Within Confidence Interval)
State Upper Limit: 367,836,135 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 309,422,309 (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, D2, E, 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