Please help me to solve this with a brief explanation. Use R if necessary. Thanks!

19.5. In a two-factor study, the treatment means my are as follows: Factor B Factor A B1 B2 B3 BA A1 250 265 268 269 A2 288 273 270 269 a. Obtain the factor B main effects. What do your results imply about factor B? b. Prepare a treatment means plot and determine whether the two factors interact. How can you tell that interactions are present? Are the interactions important or unimportant? c. Make a logarithmic transformation of the my and plot the transformed values to ex- plore whether this transformation is helpful in reducing the interactions. What are your findings?19.8. Refer to Problem 19.5. Assume that o = 4 and n = 6. a. Obtain E{MSE) and E{MSAB). b. Is E{MSAB) substantially larger than E{MSE)? What is the implication of this