(Data file: Wool) With the wool data, fit the model log(cycles) ∼ load + len:amp. Use computer software to obtain (1) the estimates and standard errors of the adjusted means of each level of load and...

(Data file: Wool) With the wool data, fit the model log(cycles) ∼ load + len:amp. Use computer software to obtain (1) the estimates and standard errors of the adjusted means of each level of load and for each combination of len: amp; (2) obtain tests to compare the levels of load and to compare the levels of amp for each level of len. that will do all the computations you need. The estimated means computed in this package can differ slightly from the means plotted by the effects package because they have slightly different defaults for values for conditioning.)