Question

In: Statistics and Probability

Suppose you want to eat lunch at a popular restaurant. The restaurant does not take reservations,...

Suppose you want to eat lunch at a popular restaurant. The restaurant does not take reservations, so there is usually a waiting time before you can be seated. Let x represent the length of time waiting to be seated. From past experience, you know that the mean waiting time is μ = 17.2 minutes with σ = 3.8 minutes. You assume that the x distribution is approximately normal. (Round your answers to four decimal places.)(a) What is the probability that the waiting time will exceed 20 minutes, given that it has exceeded 15 minutes? Hint: Compute P(x > 20|x > 15).


(b) What is the probability that the waiting time will exceed 25 minutes, given that it has exceeded 18 minutes? Hint: Compute P(x > 25|x > 18).

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

6You want to take a new worker to lunch to find out how they are settling...
6You want to take a new worker to lunch to find out how they are settling into their job.The person does not speak English as a first language and you are worried that you will not be able to make yourself understood over a meal. How might you adjust own interpersonal communication styles to converse with the person successfully taking cultural diversity and language issues into account? Provide at least 10 examples in a bullet point list.
Suppose that your favorite restaurant serves the best ramen dishes in town . Since you eat...
Suppose that your favorite restaurant serves the best ramen dishes in town . Since you eat there so often, you've observed the following : the patrons are 40% male , the probability that the patron orders a tofu-based meal given that the patron is male is 30%, while the probability that the order is tofu-based given the patron is female is 50%. One night, you walk into the restaurant and see a tofu-based dish on one of the tables that...
Write a letter to the manager of a restaurant you lunch at stating : a) what...
Write a letter to the manager of a restaurant you lunch at stating : a) what you like about the restaurant b) describe two problems you experience there c) suggest two ways of solving the problem. Use the fully- blocked layout in your answer (350 words)
Suppose you want to estimate the true proportion of persons who regularly eat oatmeal for breakfast....
Suppose you want to estimate the true proportion of persons who regularly eat oatmeal for breakfast. You get a random sample of n=100 responses. From the sample, you find that 23 people regularly eat oatmeal. A) Construct a 99% confidence interval for the population proportion. B) Interpret the meaning of a confidence interval
Trends in Restaurant Take-Out A local restaurant does a pretty significant take-out business. According to the...
Trends in Restaurant Take-Out A local restaurant does a pretty significant take-out business. According to the first few years that the business was open, the following table gives the percentages of take-out orders happen each day of the week. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 14% 9% 8% 11% 15% 21% 22% They recently noticed that they have been short drivers some days but have been not as busy other days. In a pool of 600 orders, this is...
Suppose Mary goes to an all-you-can-eat Pizza restaurant. where you pay a fixed admission fee at...
Suppose Mary goes to an all-you-can-eat Pizza restaurant. where you pay a fixed admission fee at the door and then don't pay anything for any additional slices you eat. True, False or Uncertain. Justify your answer, Have to explanation why. Consider the following statement: "In the real world, we would expect that the cost of admission should have no effect on the amount of pizza consumed by a customer."
Restaurant Pricing. Consider a restaurant that charges $10 for all, you can eat and has 20...
Restaurant Pricing. Consider a restaurant that charges $10 for all, you can eat and has 20 customers at this price. The slope of the demand curve is minus−​$0.20 per​ meal and the marginal cost of providing a meal is ​$66. ​1.) Use the line drawing tool to draw and label the demand line. ​2.) Use the line drawing tool to draw and label the marginal revenue line. ​3.) Use the line drawing tool to draw the marginal cost line. Carefully...
You eat at your office cafeteria every day during lunch time. However, you think it needs...
You eat at your office cafeteria every day during lunch time. However, you think it needs some improvements. Write a letter to the manager of the cafeteria. In your letter, • explain what you like about the cafeteria • describe the two (2) problems you experienced at the cafeteria; • suggest two (2) ways how the problems can be resolved.
You eat at your office cafeteria every day during lunch time. However, you think it needs...
You eat at your office cafeteria every day during lunch time. However, you think it needs some improvements. Write a letter to the manager of the cafeteria. In your letter about 350 words, explain what you like about the cafeteria describe the two (2) problems you experienced at the cafeteria and explain and example; suggest two (2) ways how the problems can be resolved and explain an example. \
Suppose that you want to take a sample of size 8 from the 236 shells that...
Suppose that you want to take a sample of size 8 from the 236 shells that you found at the beach during Spring Break. If you were to simply reach inside your bag of shells and grab 8 shells off of the top, what might be a source of bias? Undercoverage Wording Effects Nonresponse
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT