Question

In: Statistics and Probability

It is estimated that an average of 30 customers will arrive at an Airport check-in counters...

It is estimated that an average of 30 customers will arrive at an Airport check-in counters per hour.

a) Let X be the number of customers arrive at the counter over three hours. What is the distribution of X?

b) Let X be the number of customers arrive at the counter over three hours. How many customers would you expect in three hours?

c)What is the probability of 3 customers arriving within 10 mins? State the appropriate distribution and any parameter values. Write the probability statement and show your work in order to solve the problem.

d) Let Y represent the amount of time between the 1st customer arrive and the 10th customer arrive. What is the expected value of Y?

e) If the amount of time between two customers arriving is less than a minute, the airport will open extra counters. What is the probability that the airport will open extra counters? State the appropriate distribution and any parameter values.

I need help on c, d, and e in particular. Please explain these parts in detail and show your work.

Solutions

Expert Solution


Related Solutions

Question B2 (30 pts): Customers arrive to Lincoln Savings Bank (LSB) with an average rate of...
Question B2 (30 pts): Customers arrive to Lincoln Savings Bank (LSB) with an average rate of 3 customers per minute. The average time a teller takes to serve a customer is 5 minutes. Standard deviation of customer inter-arrival time is 1.5 minutes and standard deviation of service time is 3 minutes. LSB employs 20 tellers. All customers form a single waiting line and can be served by any of the tellers in a first-come-first-serve basis as tellers become available. For...
The rate at which customers are served at an airport check-in counter is a Poisson process...
The rate at which customers are served at an airport check-in counter is a Poisson process with a rate of 10.4 per hour. The probability that more than 50 customers are served at the counter in the next 5 hours is P(Xp>50). If this is solved as a Poisson variable, the calculations will be tedious. So we use the normal approximation. Now, P(Xp > 50)=P(Z > a), where Z is the standard normal variable. What is the value of a?...
Customers arrive at a department store according to a Poisson process with an average of 12...
Customers arrive at a department store according to a Poisson process with an average of 12 per hour. a. What is the probability that 3 customers arrive between 12:00pm and 12:15pm? b. What is the probability that 3 customers arrive between 12:00pm and 12:15pm and 6 customers arrive between 12:30pm and 1:00pm? c. What is the probability that 3 customers arrive between 12:00pm and 12:15pm or 6 customers arrive between 12:30pm and 1:00pm? d. What is the probability that a...
Customers arrive at a hair salon according to a Poisson process with an average of 16...
Customers arrive at a hair salon according to a Poisson process with an average of 16 customers per hour. The salon has just one worker due to covied-19 restriction. Therefore, the salon must close whenever the worker leaves. assume that customers who arrive while the salon is closed leave immediately and don’t wait until the worker returns. The salon is closed on weekends. a. What is the probability that at most (less than) four customers arrive in the hour before...
Customers arrive in a certain shop according to an approximate Poisson process on the average of...
Customers arrive in a certain shop according to an approximate Poisson process on the average of two every 6 minutes. (a) Using the Poisson distribution calculate the probability of two or more customers arrive in a 2-minute period. (b) Consider X denote number of customers and X follows binomial distribution with parameters n= 100. Using the binomial distribution calculate the probability oftwo or more customers arrive in a 2-minute period. (c) Let Y denote the waiting time in minutes until...
Customers arrive at a grocery store at an average of 2.2 per minute. Assume that the...
Customers arrive at a grocery store at an average of 2.2 per minute. Assume that the number of arrivals in a minute follows the Poisson distribution. Provide answers to the following to 3 decimal places. Part a) What is the probability that exactly two customers arrive in a minute? Part b) Find the probability that more than three customers arrive in a two-minute period. Part c) What is the probability that at least seven customers arrive in three minutes, given...
Customers arrive in a certain shop according to an approximate Poissonprocess on the average of two...
Customers arrive in a certain shop according to an approximate Poissonprocess on the average of two every 6 minutes. (a) Using the Poisson distribution calculate the probability of two or more customersarrive in a 2-minute period. (b) Consider X denote number of customers and X follows binomial distribution withparametersn= 100. Using the binomial distribution calculate the probability oftwo or more customers arrive in a 2-minute period. (c) Let Y denote the waiting time in minutes until the first customer arrives....
5. Suppose that the customers arrive at a hamburger stand at an average rate of 49...
5. Suppose that the customers arrive at a hamburger stand at an average rate of 49 per hour, and the arrivals follow a Poisson distribution. Joe, the stand owner, works alone and takes an average of 0.857 minutes to serve one customer. Assume that the service time is exponentially distributed. a) What is the average number of people waiting in queue and in the system? (2 points) b) What is the average time that a customer spends waiting in the...
Customers arrive at a grocery store at an average of 2.1 per minute. Assume that the...
Customers arrive at a grocery store at an average of 2.1 per minute. Assume that the number of arrivals in a minute follows the Poisson distribution. Provide answers to the following to 3 decimal places. Part a) What is the probability that exactly two customers arrive in a minute? Part b) Find the probability that more than three customers arrive in a two-minute period. Part c) What is the probability that at least seven customers arrive in three minutes, given...
Customers arrive at a local grocery store at an average rate of 2 per minute. (a)...
Customers arrive at a local grocery store at an average rate of 2 per minute. (a) What is the chance that no customer will arrive at the store during a given two minute period? (b) Since it is a “Double Coupon” day at the store, approximately 70% of the customers coming to the store carry coupons. What is the probability that during a given two-minute period there are exactly four (4) customers with coupons and one (1) without coupons? (c)...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT