Question 5 (7 points) Listen The amount of time travelers at an airport spend with customs officers has a mean of 32 seconds and a standard deviation of 10 seconds. For a random sample of 50 travelers, answer the following questions. a) Can we assume the sampling distribution of sample means is normally distributed? Why? (1 marks) b) What's the probability that in a second sample the mean will be less 31 seconds. (3 marks) c) What is the probability that the mean of the 50 travelers at customs is between 31 and 35 ? (3 marks) A