Question

The average wait time at a McDonald's drive-through window is about three minutes ("The Doctor Will...

The average wait time at a McDonald's drive-through window is about three minutes ("The Doctor Will See You Eventually," The Wall Street Journal, October 18, 2010). Suppose the wait time is exponentially distributed. What is the probability that a randomly selected customer will have to wait no more than five minutes?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The U.S. national average door-to-doctor wait time for patients to see a doctor is now 21.3...
The U.S. national average door-to-doctor wait time for patients to see a doctor is now 21.3 minutes. Suppose such wait times are normally distributed with a standard deviation of 6.7 minutes. Some patients will have to wait much longer than the mean to see the doctor. In fact, based on this information, 3% of patients still have to wait more than how many minutes to see a doctor? (Round z value to 2 decimal places. Round your answer to 2...
During lunch hour, customers arrive at a fast food drive-through window, on average, every 2.9 minutes....
During lunch hour, customers arrive at a fast food drive-through window, on average, every 2.9 minutes. Assume arrival time follows the exponential probability distribution. a) What is the probability that the next customer will arrive within the next 2 minutes? b) What is the probability that the next customer will arrive in more than 7 minutes? c) What is the probability that the next customer will arrive between 1 and 6 minutes?
An automatic roller coaster ride takes a constant time of 2.5 minutes to complete a ride....
An automatic roller coaster ride takes a constant time of 2.5 minutes to complete a ride. Customers arrive at the facility every 2.75 minutes (exponentially distributed). Report answers to 4 decimal places. a. Determine the average waiting time in the queue (in minutes). b. The local bank drive-through teller window can serve a customer at an average of 4.5 minutes per customer (exponentially distributed). Customers arrive in their cars at a rate of 12 per hour (poisson distributed). Determine the...
The wait time for phone calls to the IRS is exponentially distributed with an average of...
The wait time for phone calls to the IRS is exponentially distributed with an average of 15 minutes. What is the probability that when you call in, you have to wait more than 8 minutes? Round to the nearest tenth of a percent.
Let X = the time between two successive arrivals at the drive-up window of a local...
Let X = the time between two successive arrivals at the drive-up window of a local bank. Suppose that X has an exponential distribution with an average time between arrivals of 4 minutes. a. A car has just left the window. What is probability that it will take more than 4 minutes before the next drive-up to the window? b. A car has just left the window. What is the probability that it will take more than 5 minutes before...
A Security Pacific Bank branch has opened up a drive through teller window. There is a...
A Security Pacific Bank branch has opened up a drive through teller window. There is a single service lane, and customers in their cars line up in a single line to complete bank transactions. The average time for each transaction to go through the teller window is exactly four minutes. Throughout the day, customers arrive independently and largely at random at an average rate of ten customers per hour. What is the probability that a customer gets to complete his/her...
(1 point) The amount of time (in minutes) to serve a customer at a bank's drive-thru...
(1 point) The amount of time (in minutes) to serve a customer at a bank's drive-thru window is a random variable following a certain distribution with a mean of 1 minute and a standard deviation of 1 minute. 66 customers using the bank's drive-thru service are randomly chosen and the amount of time to serve each customer was recorded. What is the probability that the mean amount of time it takes to serve the 66 customers is between 0.9 minutes...
A theme park advertises that the average wait-time for their newest ride is 45 minutes. Since...
A theme park advertises that the average wait-time for their newest ride is 45 minutes. Since you feel like this is inaccurate because youve been waiting forever, you decide to test their claim. Throughout the day, you ask 56 people entering the line to record their wait time and tell you when they leave the ride. Through this method you get an average wait time of 47 minutes with a standard deviation of 5.6 minutes. Use a hypothesis test at...
A study found that the mean amount of time cars spent in​ drive-throughs of a certain​...
A study found that the mean amount of time cars spent in​ drive-throughs of a certain​ fast-food restaurant was 159.7 seconds. Assuming​ drive-through times are normally distributed with a standard deviation of 32 ​seconds: a) The probability that a randomly selected car will get through the​ restaurant's drive-through in less than 123 seconds is ____ b) The probability that a randomly selected car will spend more than 199 seconds in the​ restaurant's drive-through is _____ c) The proportion of cars...
assume that the amount of time (x), in minutes that a person must wait for a...
assume that the amount of time (x), in minutes that a person must wait for a bus is uniformly distributed between 0 & 20 min. a) find the mathematical expression for the probability distribution and draw a diagram. assume that the waiting time is randomly selected from the above interval b) find the probability that a eprson wait elss than 15 min. c) find the probability that a person waits between 5-10 min. d) find the probability the waiting time...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT