taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
080/Franklin
080-901/Mount Vernon ISD

Category Summary

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

Stratum
Variance
A 147,609,330 0.9356 157,769,699 32 1,466 .011625929
A 150,049,340 0.9841 152,473,671 18 533 .008303349
A 145,584,560 0.9756 149,225,666 14 308 .005523747
A 149,913,090 0.9514 157,571,043 6 188 .028946802
E 121,115,890 0.9637 125,678,001 8 1,473 .008806864
L1 3,468,050 0.9842 3,523,725 6 27 .032807932
L1 2,932,580 0.9832 2,982,689 6 10 .004173899
Random Totals: 720,672,840   749,224,494 90 4,005  
Catg J Exception Values: 680,160   866,327      
Catg D1 Exception Values: 14,258,620   11,505,150      
Catg L1 Exception Values: 76,280,690   76,250,945      
Total Test Values (4): 811,892,310   837,846,916      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 41,892,345

Confidence Interval Values (5)

State Lower Limit: 795,954,571 (State Test Value minus Margin of Error Percent)
Local Test Value: 811,892,310 (Within Confidence Interval)
State Upper Limit: 879,739,261 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 964,407,484 (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