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Polk County
2019 Confidence Interval Detail
Polk County
187-901/Big Sandy ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 11,043,822 | 0.9043 | 12,212,564 | 12 | 265 | 0.066674699 |
| A | 10,527,814 | 1.0188 | 10,333,543 | 11 | 127 | 0.074452415 |
| A | 10,886,301 | 0.9982 | 10,905,932 | 11 | 88 | 0.040098951 |
| A | 11,604,634 | 1.1209 | 10,352,961 | 10 | 56 | 0.012400797 |
| E | 34,783,073 | 0.9132 | 38,089,217 | 20 | 463 | 0.075476913 |
| G1 | 128,346,240 | 0.9960 | 128,861,687 | 15 | 44 | 0.000252181 |
| Random Totals: | 207,191,884 | 210,755,904 | 79 | 1,043 | ||
| CATG D1 EXCEPTION VALUES: | 21,741,587 | 22,316,230 | ||||
| CATG J EXCEPTION VALUES: | 4,621,700 | 3,237,901 | ||||
| Total Test Values(2) | 233,555,171 | 236,310,035 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 11,815,502 |
Confidence Interval Values(5)
| Local Test Value: | 233,555,171 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 224,494,533 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 248,125,537 | (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