Customers arrive at a particular store at the rate of 30 customers per hour. Use the Excel Poisson function to calculate the following probabilities: Q11) What is the probability of 15 customers arriving in an hour? Q12) What is the probability of 3 customers arriving in a 5-minute interval? Q13) What is the probability of at least 2 customers arriving in a 10-minute interval? Q14) What is the probability of 10 customers arriving in a 20-minute interval