taxes Property Tax Assistance

2019 Confidence Interval Detail

Polk County
187-903/Goodrich ISD

Category Summary

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

Stratum
Variance
A 13,090,901 0.9597 13,640,618 17 282 0.174973006
A 15,380,377 0.9596 16,027,904 17 183 0.061630226
A 15,621,599 0.9807 15,929,029 17 127 0.033646873
A 16,907,363 1.0196 16,582,349 17 81 0.014093592
E 15,851,366 0.9018 17,577,474 17 173 0.058918472
Random Totals: 76,851,606 79,757,374 85 846
CATG D1 EXCEPTION VALUES: 3,606,850 3,455,553
CATG J EXCEPTION VALUES: 5,772,272 5,536,786
Total Test Values(2) 86,230,728 88,749,713

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,437,486

Confidence Interval Values(5)

Local Test Value: 86,230,728 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 84,312,227 (State Test Value minus Margin of Error Percent)
State Upper Limit: 93,187,199 (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