taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
050/Coryell
050-909/Jonesboro ISD

Category Summary

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

Stratum
Variance
A 1,821,400 0.9850 1,849,137 9 44 .041241358
A 2,304,390 1.0678 2,158,073 8 32 .022528905
A 2,132,440 0.9298 2,293,439 7 20 .007679086
A 1,596,810 0.9467 1,686,712 6 8 .004668830
E 26,962,861 1.0305 26,164,834 15 338 .007664496
Random Totals: 34,817,901   34,152,195 45 442  
Catg J Exception Values: 30,710   31,733      
Catg D1 Exception Values: 5,716,039   5,383,908      
Total Test Values (4): 40,564,650   39,567,836      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 1,978,392

Confidence Interval Values (5)

State Lower Limit: 37,589,444 (State Test Value minus Margin of Error Percent)
Local Test Value: 40,564,650 (Within Confidence Interval)
State Upper Limit: 41,546,228 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 38,642,634 (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