A company famous for its nacho-flavored corn chips has developed two new formulas, A and B, which they hope their customers will like even more than the original formula. To determine whether customers prefer one of the new formulas over the current nacho flavoring, a sample of 50 customers is obtained. Each customer tastes both formula A and formula B in a randomly assigned order and indicates which one they prefer more. Which of the following best describes this study?a. This study is not well designed because there is no replication. Each customer tasted the formulas only once.
b. This study is not well designed because formulas A and B are not compared with the original formula.
c. This study is not well designed because the sample may not have been randomly selected.
d. This study is not well designed because each customer should taste the two new formulas in the same order.
e. This study is not well designed because there is not enough replication with only 50 customers.