This time we are looking on the **crossword puzzle clue** for: *Toward the stern.*

it’s A 16 letters **crossword definition**.

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## Possible Answers:
**AFT**.

**AFT**.

Last seen on: –NY Times Crossword 8 Nov 21, Monday

–Eugene Sheffer – King Feature Syndicate Crossword – Mar 18 2021

–Eugene Sheffer – King Feature Syndicate Crossword – Aug 28 2020

–The Washington Post Crossword – Jun 22 2020

–Universal Crossword – Feb 16 2020

–NY Times Crossword 16 Feb 20, Sunday

–USA Today Crossword – Sep 9 2019

LA Times Crossword 5 Sep 19, Thursday

### Random information on the term “AFT”:

In the statistical area of survival analysis, an accelerated failure time model (AFT model) is a parametric model that provides an alternative to the commonly used proportional hazards models. Whereas a proportional hazards model assumes that the effect of a covariate is to multiply the hazard by some constant, an AFT model assumes that the effect of a covariate is to accelerate or decelerate the life course of a disease by some constant. This is especially appealing in a technical context where the ‘disease’ is a result of some mechanical process with a known sequence of intermediary stages.

In full generality, the accelerated failure time model can be specified as

where θ {\displaystyle \theta } denotes the joint effect of covariates, typically θ = exp ( − [ β 1 X 1 + ⋯ + β p X p ] ) {\displaystyle \theta =\exp(-[\beta _{1}X_{1}+\cdots +\beta _{p}X_{p}])} . (Specifying the regression coefficients with a negative sign implies that high values of the covariates increase the survival time, but this is merely a sign convention; without a negative sign, they increase the hazard.)