Finding Outliers - where to start?

[anthony]

Hi, I am working on a project were I have weights of products shipped. I am trying to identify extreme outliers by product that do not fit into the normal distribution for that products actual weight.

This has 2 purposes; investigate why they are outliers to identify issues and to remove for average weight calculation by product for further downstream needs.

Can someone point me in the right direction/method I should consider so I can setup a marco to process each product to identify outliers so I can remove them? Are there R functions or exsisting alterxy workflows that can easily accomplish?

Thanks,

Anthony

[Janet_Tan]

refering to the threshold. I just used value 1 which is equivalent to 1 SD for my dataset. You could read up materials on Z score.