Ha! I bet the person who wrote this question was just trying to trick us. Of course, option A is the right answer - these results are about as clear as mud.
Hmm, I'm not too sure about this one. The lack of p-values is a bit concerning, so I'm leaning towards option E. Maybe I should have paid more attention in my design of experiments class.
Option D seems enticing, but I'm not sure the design has enough power to make such a strong conclusion. It's always best to be cautious with these types of analyses.
This looks like a tricky experimental design question. I think option B is the correct answer, as the results show that Adv and Bev are the only factors with statistically significant effects at the 95% confidence level.
But option B states that only Constant, Adv, and Bev are statistically affecting the response rate, while option D suggests that only Adv and Bev at low level are needed for the largest response rate.
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