These include hypothesis testing, the partitioning of sums of squares, experimental techniques and the additive model.
ðiːz ɪŋklˈuːd haɪpˈɑːθəsˌɪs tˈɛstɪŋ, ðə pɑːɹtˈɪʃənɪŋ ʌv sˈʌmz ʌv skwˈɛɹz, ɛkspˌɛɹɪmˈɛntəl tɛknˈiːks ænd ðɪ ˈædᵻtˌɪv mˈɑːdəl.