A two-factor experiment yielded the following data:

Factor A Factor B Level 1 Level 2 Level 3 Level 1 375 402 395 390 396 390 Level 2 335 336 320 342 338 331 Level 3 302 485 351 324 455 346

a. Determine if there is interaction between factor A and factor B. Use the p-value approach and a significance level of 0.05.

b. Given your findings in part

a, determine any significant differences among the response means of the levels of factor A for level 1 of factor B.

c. Repeat part b at levels 2 and 3 of factor B, respectively.
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