A class is composed of 35 psychology majors and 35 speech majors. If 18 of the 20 people who enter the room are speech majors, is that sufficient evidence to argue that speech majors are abnormally early to class, compared to psychology majors? Use the sign test to answer this question. Choose your own alpha and explain your choice

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total