Chapter 7 · Statistical Foundationsp. 142
Estimation begins with a confession: we do not know the parameter.
What we have instead is a sample, and a willingness to be wrong in a way we can quantify. Everything that follows — the intervals, the tests, the long apologetic paragraphs about assumptions — is bookkeeping on that single admission.
Reading modeThe page stays lit while the room stays dark.
Follow along word by word, or turn the text off entirely and just listen. Your place syncs across every device, down to the sentence.
- TAPTap any word to jump there. Alignment is accurate to under 100 milliseconds, so the audio lands where your eye is.
- VIEWTwo views. Reflow for comfort, or the original page image with the current sentence lit — the one academics ask for.
- HOLDHold to leave a voice note. It attaches to the timestamp and exports with your highlights.
- CARCar, walk and sleep modes. Big targets, no reading required, and a sleep timer that rewinds to where you actually drifted off.