Question

The time it takes to fill an order at an online retailer is normally distributed 2...

The time it takes to fill an order at an online retailer is normally distributed 2 hours with a standard deviation of 0.5 hours. The time it takes to package an order for the same retailer is normally distributed 0.3 hours with a standard deviation of .1 hours.

Find the probability that filling and packaging the order takes more than 2 hours

Homework Answers

Answer #1

a)  

b)  

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
The time it takes to assemble a car in a certain factory is normally distributed with...
The time it takes to assemble a car in a certain factory is normally distributed with a mean of 20 hours and a standard deviation of 2 hours. [Probability = percent] What is the probability that a car can be assembled in less than 19.4 hours? What is the probability that a car can be assembled between 20 and 22 hours? What is the probability that it will take more than 23 hours to assemble a car? What is the...
The length of time it takes to fill an order at the canteen at Westminster Business...
The length of time it takes to fill an order at the canteen at Westminster Business School is normally distributed with a mean of 4.1 minutes and standard deviation of 1.3 minutes. ii) What is the probability that the average waiting time for a random sample of ten customers is between 4.0 and 4.2 minutes? iii) If the probability that the waiting time for a random sample of ten customers is greater than ɑ minutes is equal to 95%, what...
The time it takes to assemble a car in a certain factory is normally distributed with...
The time it takes to assemble a car in a certain factory is normally distributed with a mean of 20 hours and a standard deviation of 2 hours. [Probability = percent] (a) What is the probability that a car can be assembled in less than 19.4 hours? (b) What is the probability that a car can be assembled between 20 and 22 hours? (c) What is the probability that it will take more than 23 hours to assemble a car?...
The time it takes for robots to defect is normally distributed with a mean time of...
The time it takes for robots to defect is normally distributed with a mean time of 1,500 hours and a standard deviation of 120 hours. a) What is the probability that a robot will ‘break down’ before 1680 hours? b) What is the probability that a robot breaks down between 1380 hours and 1590 hours?
The time it takes for a data collection operator to fill out an electronic form for...
The time it takes for a data collection operator to fill out an electronic form for a database is uniformly distributed between 7.5 and 14 minutes. a. What is the mean time it takes to process an electronic form? b. What is the standard deviation of the time it takes to process an electronic form? c. What is the probability that it takes more than 10 minutes to fill out a form? d. What is the probability it takes between...
The time a student spends learning a computer software package is normally distributed with a mean...
The time a student spends learning a computer software package is normally distributed with a mean of 8 hours and a standard deviation of 1.5 hours. A student is selected at random. a)What is the probability that the student spends at least 6 hours learning the software package? b) What is the probability that the student spends between 6.5 and 8.5 hours learning the software package? c) If only 7% of the students spend more than k hours learning the...
The time it takes a random person to get a haircut is Normally Distributed, with an...
The time it takes a random person to get a haircut is Normally Distributed, with an average of 23.8 minutes and a standard deviation of 5 minutes. Assume that different people have independent times of getting their hair cut. Find the probability that, if there are four customers in a row (with no gaps in between), they will all be finished getting their hair cut in 1.5 hours (altogether) or less.
The time it takes for a statistics professor to mark a single midterm test is normally...
The time it takes for a statistics professor to mark a single midterm test is normally distributed with a mean of 4.9 minutes and a standard deviation of 1.7 minutes. There are 57 students in the professor's class. What is the probability that he needs more than 5 hours to mark all of the midterm tests?
The time it takes to assemble run a track course is normally distributed with a mean...
The time it takes to assemble run a track course is normally distributed with a mean of 5.1 minutes and a standard deviation of 0.7 minutes. Find the probability that a randomly selected runner will take between 5.3 and5.6 minutes?
Suppose that the time it takes to complete a Ph.D. in mathematics is normally distributed with...
Suppose that the time it takes to complete a Ph.D. in mathematics is normally distributed with a mean of 5.8 years and a standard deviation of 0.7 years. Find the probability that a random sample of 15 mathematicians has an average time to completion of under 5.5 years. (round to three decimal places)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT