taxes Property Tax Assistance

2020 Confidence Interval Detail

Ellis County
070-907/Italy ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 15,679,335 1.0437 15,022,837 12 192 0.028076422
A 21,657,064 0.9410 23,014,946 14 189 0.012875100
A 37,573,602 0.9752 38,529,124 16 250 0.007623420
A 28,918,200 1.0152 28,485,225 12 117 0.006782999
E 49,335,944 0.9568 51,563,487 20 289 0.018623951
F1 27,675,181 1.0240 27,026,544 12 49 0.044780678
L1 7,478,016 1.0553 7,086,152 9 27 0.008793540
Random Totals: 188,317,342 190,728,315 95 1,113
CATG D1 EXCEPTION VALUES: 6,090,745 2,352,714
CATG L1 EXCEPTION VALUES: 4,974,210 4,860,398
Total Test Values 199,382,297 197,941,427

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,897,071

Confidence Interval Values(5)

Local Test Value: 199,382,297 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 188,044,356 (State Test Value minus Margin of Error Percent)
State Upper Limit: 207,838,498 (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