Take home assessments during Interviews?

I’m wondering how common take home data science projects are when your interviewing and should you always do them?

I’ve gotten three different 1 week long take home projects (out of the 5 companies I’ve interviewed at so far). The projects all require data cleaning and fitting a model. One project had several messy data files with no column descriptions at all.

Another company sent me a 90 minute assessment before even talking to me (have no communication with an …

companies data data cleaning data science datascience home interviewing interviews messy data project projects science them