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Polk County
2025 Confidence Interval Detail
Polk County
187-910/Onalaska ISD
Category Summary
| (1) Category |
(1) Stratum Number |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|---|
| A | 2 | 234,741,709 | 0.9564 | 245,443,025 | 56 | 1,882 | 4,262,734,748 |
| A | 3 | 268,268,465 | 0.9699 | 276,593,943 | 43 | 1,068 | 4,859,797,593 |
| A | 4 | 256,026,249 | 1.0083 | 253,918,724 | 22 | 615 | 10,279,993,925 |
| A | 5 | 298,152,052 | 1.0223 | 291,648,295 | 17 | 360 | 368,696,606,982 |
| C1 | 2 | 17,525,623 | 0.9172 | 19,107,744 | 19 | 2,491 | 20,545,990 |
| C1 | 3 | 23,798,033 | 0.9125 | 26,080,036 | 19 | 1,661 | 85,024,289 |
| C1 | 4 | 22,245,167 | 1.2822 | 17,349,218 | 10 | 571 | 596,244,916 |
| C1 | 5 | 19,453,385 | 1.2185 | 15,965,027 | 10 | 98 | 5,143,530,111 |
| Random Totals: | 1,140,210,683 | 1,146,106,012 | 196 | 8,746 | |||
| CATG D1 EXCEPTION VALUES: | 3,907,623 | 3,400,266 | |||||
| Total Test Values | 1,144,118,306 | 1,149,506,278 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 57,475,314 |
Confidence Interval Values(5)
| Local Test Value: | 1,144,118,306 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 1,092,030,964 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 1,206,981,592 | (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