2. In question 20c on assignment 9 you were asked how many people out 20 would have to pick brand X before your were convinced there really was a preference. Go back and statistically check your intuition. In other words take whatever number you chose out of 20 (number of people who must like brand X) and perform a sign test on it to see if your guess would have been significant.

This is my answer from 20 c

10 preferred brand x to y

in 20 c 20 people were trying to decide between 2 sodas on which one tasted better

how many were willing to conclude that their preference was for brand X

20 students living in a college dorm in a contest between the two best sodas

20c was how many students would prefer brand x before you would be willing to conclude that there really is a preference for brand X