taxes Property Tax Assistance

2017 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 19,988,591 1.0237 19,525,829 8 395 .008164217
A 21,552,520 0.9442 22,826,223 9 249 .013543461
A 21,124,640 0.9542 22,138,587 6 161 .069915865
A 21,953,585 0.9057 24,239,356 5 101 .021271439
E 181,412,602 0.9548 190,000,630 27 2,541 .024971632
F1 9,322,054 0.8029 11,610,480 10 126 .084543341
F1 11,073,734 0.9718 11,395,075 9 54 .040631093
F1 11,083,670 0.9954 11,134,890 6 17 .004955547
F1 7,596,520 1.0659 7,126,860 3 3 .005807875
L1 4,525,510 0.9112 4,966,539 9 95 .012590768
L1 4,308,150 0.9182 4,691,952 7 18 .035197790
L1 5,607,730 0.9541 5,877,508 4 8 .000406020
Random Totals: 319,549,306   335,533,929 103 3,768  
Catg J Exception Values: 632,100   836,292      
Catg D1 Exception Values: 10,569,633   11,969,901      
Catg L1 Exception Values: 3,742,810   3,102,879      
Total Test Values (4): 334,493,849   351,443,001      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,572,150

Confidence Interval Values (5)

State Lower Limit: 333,870,851 (State Test Value minus Margin of Error Percent)
Local Test Value: 334,493,849 (Within Confidence Interval)
State Upper Limit: 369,015,151 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 377,663,413 (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