Question

The Cornbread Cafe in Eugene, Oregon, recently installed a new computer system that allows customers to...

The Cornbread Cafe in Eugene, Oregon, recently installed a new computer system that allows customers to order their meals electronically from their tables. The manager of the restaurant claims that this new system will decrease the waiting time, and that the probability of getting a meal in less than 77 minutes (with this system in place) is 0.75.0.75. Suppose four customers are selected at random. Let the random variable ?X be the number of customers who get their meal in less than 7 minutes.7 minutes.

Find the probability distribution for ?.X. Round your answers to four decimal places.

P(0) =

p(1) =

P(2) =

P(3) =

P(4) =

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
. Recall that a bank manager has developed a new system to reduce the time customers...
. Recall that a bank manager has developed a new system to reduce the time customers spend waiting for teller service during peak hours. The manager hopes the new system will reduce waiting times from the current 9 to 10 minutes to less than 6 minutes. Suppose the manager wishes to use the random sample of 75 waiting times to support the claim that the mean waiting time under the new system is shorter than six minutes. Letting μ represent...
4. A bank manager has developed a new system to reduce the time customers spend waiting...
4. A bank manager has developed a new system to reduce the time customers spend waiting for teller service during peak hours. The manager hopes that the new system will reduce waiting times from the current 9 to 10 minutes to less than 6 minutes. a. Set up the null and alternative hypotheses needed if we wish to attempt to provide evidence supporting the claim that the mean waiting time is shorter than six minutes. b. The mean and the...
Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions...
Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 30 customers per hour or 0.5 customers per minute. In the same bank waiting line system, assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 36 customers per hour, or 0.6...
Recall that a bank manager has developed a new system to reduce the time customers spend...
Recall that a bank manager has developed a new system to reduce the time customers spend waiting to be served by tellers during peak business hours. The mean waiting time during peak business hours under the current system is roughly 9 to 10 minutes. The bank manager hopes that the new system will have a mean waiting time that is less than six minutes. The mean of the sample of 104 bank customer waiting times is x¯x¯ = 5.46. If...
Problem 15-3 (Algorithmic) Willow Brook National Bank operates a drive-up teller window that allows customers to...
Problem 15-3 (Algorithmic) Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 18 customers per hour or 0.3 customers per minute. In the same bank waiting line system, assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 30 customers per...
1. A Telecommunications company recently installed a new speech recognition system for its repair calls. In...
1. A Telecommunications company recently installed a new speech recognition system for its repair calls. In their old system, operators had to press keys on the numeric keypad to answer questions, which led to longer time on service calls. The company is conducting a study to determine the effectiveness of the new system and to do so they want to estimate the average duration of service calls with the new system. They analyzed a random sample of 15 service calls...
1. Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank...
1. Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 6 customers per hour or 0.1 customers per minute. Also assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 54 customers per hour, or 0.9 customers per minute. Determine the...
8.27. The PNC bank manager of WMU branch has developed a new system to reduce the...
8.27. The PNC bank manager of WMU branch has developed a new system to reduce the time customers spend waiting for teller service during peak hours. The manager hopes the new system will reduce waiting times from the current nine to ten minutes to less than 6 minutes.Average waiting time was obtained as 5.46 based on a random sample of 25 waiting times. Is there enough evidence at the 5% level of significance to validate managers claim? Assume that the...
Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions...
Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 24 customers per hour or 0.4 customers per minute. Also assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 36 customers per hour, or 0.6 customers per minute. Determine the probabilities...
Problem 11-04 (Algorithmic) Willow Brook National Bank operates a drive-up teller window that allows customers to...
Problem 11-04 (Algorithmic) Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 24 customers per hour or 0.4 customers per minute. Also assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 36 customers per hour, or 0.6 customers per minute....