Many would do well to look at simple DOE when building experimental design. At least look at the data distributions before taking means and stdev. NIST has

Many would do well to look at simple DOE when building experimental design. At least look at the data distributions before taking means and stdev. NIST has some nice simple descriptions and example experimental designs: https://www.itl.nist.gov/div898/handbook/pmd/pmd.htm