Determine whether the test is two-tailed or one-tailed. If it is one-tailed, is it left-tailed or right tailed? Explain and justify your answers. a. A nutritionist claims that her developed bread is fortified with vitamin B. b. A musician believes that listening to classical music affects mood. c. A storekeeper thinks that time of day influences sale of ice cream. d. A mother wants to prove that reading books to children improves their thinking processes. e. A certain combination of fruits provides the daily requirement for vitamin C.