# Observed confidence levels by Alan M. Polansky — resale value

Source: JunkPal price guide — https://junkpal.ai/products/observed-confidence-levels-alan-m-polansky-ol9767538w

**Observed confidence levels by Alan M. Polansky** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/observed-confidence-levels-alan-m-polansky-ol9767538w

Values are medians of real closed eBay sales, updated 2026-07-16. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DAlan%2520M%2520Polansky%2520Observed%2520confidence%2520levels%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DAlan%2520M%2520Polansky%2520Observed%2520confidence%2520levels%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 1584888032 |
| Brand | Alan M. Polansky |
| Published | 2007 |
| Publisher | Chapman & Hall/CRC |
| Pages | 288 |
| Editions | 6 |
| Category | Mathematics |

## Observed confidence levels resale value

**Observed confidence levels** by Alan M. Polansky (2007). Across 6 editions. Used-book value depends heavily on edition (first printing vs. reprint), condition, dust jacket, and whether it's signed. First editions and out-of-print titles command the biggest premiums.

### What drives the price

First editions/first printings, intact dust jackets, signatures, and unmarked pages are the top value drivers. Book-club editions and later reprints are worth far less.

## FAQ

**Is this the latest edition available?**

This specific listing is for the 6th edition, published in 2007.

**What is the ISBN for this textbook?**

The ISBN for this book is 1584888032.

**Who is the author of this mathematics text?**

The author of "Observed Confidence Levels" is Alan M. Polansky.

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Full price guide: https://junkpal.ai/products/observed-confidence-levels-alan-m-polansky-ol9767538w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-16, based on real sold listings (junkpal.ai)"