taxes Property Tax Assistance

2017 Confidence Interval Detail

187/Polk
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 19,263,056 0.8984 21,441,514 15 504 .017248516
A 20,300,805 0.9261 21,920,748 15 293 .015445926
A 20,393,699 0.9503 21,460,275 15 199 .015612777
A 26,789,650 1.0458 25,616,418 16 156 .006330439
E 35,348,081 0.9596 36,836,266 22 534 .019143148
Random Totals: 122,095,291   127,275,221 83 1,686  
Catg J Exception Values: 27,564,626   24,771,878      
Catg D1 Exception Values: 33,764,040   33,183,562      
Total Test Values (4): 183,423,957   185,230,661      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,261,533

Confidence Interval Values (5)

State Lower Limit: 175,969,128 (State Test Value minus Margin of Error Percent)
Local Test Value: 183,423,957 (Within Confidence Interval)
State Upper Limit: 194,492,194 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 381,348,394 (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