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Polk County
2021 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 | 10,761,937 | 1.1233 | 9,580,644 | 12 | 261 | 0.057544795 |
| A | 12,354,608 | 1.0743 | 11,500,147 | 12 | 149 | 0.128310031 |
| A | 13,558,596 | 0.9521 | 14,240,727 | 13 | 108 | 0.024036383 |
| A | 15,944,370 | 1.1203 | 14,232,232 | 11 | 70 | 0.062365933 |
| E | 42,253,605 | 0.9502 | 44,468,117 | 24 | 455 | 0.147219487 |
| G1 | 46,216,770 | 0.9695 | 47,670,727 | 9 | 46 | 0.000215852 |
| Random Totals: | 141,089,886 | 141,692,594 | 81 | 1,089 | ||
| CATG D1 EXCEPTION VALUES: | 22,445,821 | 21,252,529 | ||||
| CATG J EXCEPTION VALUES: | 3,855,400 | 4,335,019 | ||||
| Total Test Values | 167,391,107 | 167,280,142 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 8,364,007 |
Confidence Interval Values(5)
| Local Test Value: | 167,391,107 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 158,916,135 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 175,644,149 | (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