Exercise 5.7.1 Compare all pairs of means for the blue jeans exercise of Chapter 4. Use the following methods:

(a) Scheff´e’s method, α = 0.01,

(b) LSD method, α = 0.01,

(c) Bonferroni method, α = 0.012,

(d) Tukey’s HSD method, α = 0.01,

(e) Newman–Keuls method, α = 0.01.