I would like step by step instructions (with rationale) on how to create a bell curve please.
I have a set of employee performance ratings as attached as "Sample" that I would like to plot in a bell curve to acertain the performance spread. I have seen an example on a website but that uses dummy data and I am struggling to apply the logic of the provided example, to my own data.
I hope I have provided enough information for you to go on. If not, please let me know what else you need from me and I will accommodate