Quick Start for:

2009 Confidence Interval Detail
250/Wood
250-907/Winnsboro ISD

Category Summary

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

Stratum
Variance
A 31,346,651 1.0502 29,848,268 23 748 .028400551
A 30,797,830 1.0179 30,256,243 21 413 .030700428
A 34,492,810 0.9819 35,128,638 18 321 .007862216
A 37,766,675 0.9314 40,548,288 16 208 .016431597
D3 101,207,341 1.0140 99,810,001 36 3,781 .053215215
F1 8,320,641 0.8803 9,452,052 9 125 .138856510
F1 7,637,670 0.8554 8,928,770 7 48 .078271904
F1 9,310,350 0.9648 9,650,031 7 29 .029791852
F1 10,479,940 0.9544 10,980,658 6 10 .004357250
G1 14,903,079 0.9939 14,994,546 7 49 .049770944
L1 4,032,920 0.9808 4,111,868 7 116 .001912746
L1 5,307,690 0.9355 5,673,640 6 34 .017345132
L1 3,011,140 0.9919 3,035,729 4 5 .000825735
Random Totals: 298,614,737   302,418,732 167 5,887  
Catg D1 Exception Values: 10,374,982   8,286,244      
Catg G1 Exception Values: 3,815,680   3,550,064      
Catg L1 Exception Values: 3,960,400   4,008,104      
Total Test Values (4): 316,765,799   318,263,144      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,913,157

Confidence Interval Values (5)

State Lower Limit: 302,349,987 (State Test Value minus Margin of Error Percent)
Local Test Value: 316,765,799 (Within Confidence Interval)
State Upper Limit: 334,176,301 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 312,182,394 (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

Required Plug-ins