Final answer:
On average, 180 people enter Starbucks every hour and the average number of minutes a customer spends in process at the campus deli is 21 minutes.
Step-by-step explanation:
1. To find the number of people entering Starbucks every hour, we first need to find out how many people enter Starbucks per minute. Given that on average, a person spends 10 minutes at Starbucks and there are on average 18 people in Starbucks, the total number of minutes spent by all the people in Starbucks per hour would be 10 minutes * 18 people = 180 minutes. Therefore, on average, 180 people enter Starbucks every hour.
2. To find the average number of minutes a customer spends in process at the campus deli, we need to divide the total number of minutes spent by all the customers by the number of customers. Given that the deli serves 232 customers over a busy lunch period and there are, on average, 11 customers in process at any point in time, the average number of minutes a customer spends in process would be 232 customers / 11 customers = 21.09 minutes. Rounded to the nearest integer, the average number of minutes a customer spends in process is 21 minutes.