Experimenting With The Data Professional Salary Survey

Mala Mahadevan investigates a potential correlation in the data professional salary survey:

The questions I was looking at are as below:
1 Is there any correlation between experience and number of hours worked?
2 Is there any correlation between experience and job duties/kinds of tasks performed?
3 Is there any correlation between experience and managing staff – ie – do more people with experience take to management as a form of progress?

I am using this blog post to explore question 1.

Click through to see if there is a correlation between experience and hours worked.  One critique I have is that years of experience is not normally distributed:  there’s a hard cutoff at 0, so although the possible range does follow what a hypothetical normal distribution would do (and it doesn’t really affect the analysis Mala did), that difference can be important in other analyses.

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