Question

- in a restaurant, 40% of the costumer ordered a pizza. 40% of the costumer ordered...

- in a restaurant, 40% of the costumer ordered a pizza. 40% of the costumer ordered salad ot soup. If 50% of the costumer ordered pizza after they ordered salad or soup, what is the probability that a randomly selected a costumer will order pizza and salad or soup?

- the length of time to make a device is normally distributed with mean = 6.7 min and standard deviation = 2.2 min. At random, what is the probability of the time will be at least 10 minutes?

- if 16 devices are selected at random, what is the probability that their average is no more than 5 minutes?

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
A local eat in pizza restaurant wants to investigate the possibility of starting to deliver pizzas....
A local eat in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. th owner of the store has determined that home delivery will be successful only if the average time spent on delivery does not exceed 40 minutes. The owner has randomly selected 17 customers and delivered pizza to their homes in order to test whether the mean delivery time actually exceeds 40 minutes. Suppose the p value for the test was found to be .0293....
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 40 minutes. The owner has randomly selected 17 customers and delivered pizzas to their homes in order to test whether the mean delivery time actually exceeds 40 minutes. Suppose the p-value for the test was found to be .0270. State...
A Pizza delivery business in a large city has determined that the amount of time that...
A Pizza delivery business in a large city has determined that the amount of time that a customer spends waiting for their delivery order is normally distributed with a mean of 26.5 minutes and a standard deviation of 3 minutes. What is the probability that for a randomly chosen customer the amount of time spent waiting for their delivery is less than 30 minutes. Use the calculator to determine the probability. Write the calculator function. A Pizza delivery business in...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 31 minutes. The owner has randomly selected 15 customers and delivered pizzas to their homes in order to test whether the mean delivery time actually exceeds 31 minutes. The average delivery time was 32 minutes with a standard deviation of...
The length of time to complete a door assembly on an automobile factory assembly line is...
The length of time to complete a door assembly on an automobile factory assembly line is normally distributed with a mean of 6.7 minutes and a standard deviation of 2.2 minutes. For a door selected at random, what is the probability that the time it takes to assemble will be: a.) 5 minutes or less? b.) 10 minutes or more? c.) Between 5 and 10 minutes? d.) What is the maximum amount of time it takes to complete a door...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 33 minutes. The owner has randomly selected 21 customers and has delivered pizzas to their homes in order to test if the mean delivery time actually exceeds 33 minutes. Suppose the P-value for the test was found to be 0.0270. State...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The...
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 40 minutes. The owner has randomly selected 42 customers and has delivered pizzas to their homes in order to test if the mean delivery time actually exceeds 40 minutes. Suppose the P-value for the test was found to be 0.0281. State...
Suppose pizza delivery times are a normally distributed random variable with an expected value of 20...
Suppose pizza delivery times are a normally distributed random variable with an expected value of 20 minutes and a standard deviation of 4 minutes. a) What is the probability a delivery will take between 15 and 25 minutes? b) If the pizza doesn’t arrive in 30 minutes, it is free. What is the probability the pizza will be free? c) Find the shortest range of times that includes 40% of all delivery times. d) In a particular month 1,000 pizzas...
A pizza delivery chain advertises that it will deliver your pizza 25 minutes from when the...
A pizza delivery chain advertises that it will deliver your pizza 25 minutes from when the order is placed. A random sample of 13 customers recorded the time it took for their pizzas to be delivered and found that the mean time was 27.2 minutes, with a standard deviation of 4.3 minutes. Assume the population of delivery times is normally distributed and test the claim that the mean pizza delivery time is 25 minutes using a 5% level of significance....
If the class in our University lasts that is Uniformly Distributed between 40 min and 60...
If the class in our University lasts that is Uniformly Distributed between 40 min and 60 min. (a) [3 Points] What is the probability that the time interval randomly selected a class length is longer than 55 minutes (Class delay)? (b) [3 Points] There are 48 classes in University per week for year one students, let ?? be the number of classes would delay (class length is longer than 55 minutes) in each week for year one students, so what’s...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT