taxes Property Tax Assistance

2020 Confidence Interval Detail

Nolan County
177-903/Blackwell CISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
D2 9,302,100 0.9880 9,415,081 13 245 0.005615484
E 22,015,340 1.0732 20,513,735 16 282 0.136481809
G1 5,031,270 0.9972 5,045,397 14 50 0.000179067
G1 5,263,328 0.9997 5,264,907 6 8 0.000217058
Random Totals: 41,612,038 40,239,120 49 585
CATG D1 EXCEPTION VALUES: 13,868,352 11,321,641
CATG G1 EXCEPTION VALUES: 9,003,690 8,941,330
CATG J EXCEPTION VALUES: 37,464,859 41,578,730
Total Test Values 101,948,939 102,080,821

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,104,041

Confidence Interval Values(5)

Local Test Value: 101,948,939 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 96,976,780 (State Test Value minus Margin of Error Percent)
State Upper Limit: 107,184,862 (State Test Value plus Margin of Error Percent)

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