taxes Property Tax Assistance

2021 Confidence Interval Detail

Polk County
187-904/Corrigan-Camden ISD

Category Summary

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

Stratum
Variance
A 23,309,745 0.9947 23,433,945 17 522 0.067244777
A 25,486,726 1.0010 25,461,265 17 313 0.037532431
A 25,274,843 1.0297 24,545,832 17 204 0.035282589
A 31,063,311 1.0424 29,799,800 17 141 0.055338403
E 57,320,737 1.0895 52,611,966 23 612 0.047438620
Random Totals: 162,455,362 155,852,808 91 1,792
CATG D1 EXCEPTION VALUES: 37,433,175 34,442,355
CATG J EXCEPTION VALUES: 30,649,720 33,642,045
Total Test Values 230,538,257 223,937,208

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 11,196,860

Confidence Interval Values(5)

Local Test Value: 230,538,257 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 212,740,348 (State Test Value minus Margin of Error Percent)
State Upper Limit: 235,134,068 (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