Push your sales with statistical process control

Are quality control charts an underestimated concept of sales analysis?

Identifying random noise or systematic drift using SPC (French coast, image by author)

One sub field of statistics is statistical process control (SPC). SPC is hardly ever mentioned in any books about data science. Top of that SPC is scarcely used with sales data. I believe that SPC is misprized in this analytical conception. Actually SPC can be a…