The average running times of disks produced by Company A is 88.1 minutes and a standard deviation of 6.1 minutes, while Company B obtained a mean running times of 99.3 minutes with a standard deviation of 13.6 minutes. Assume the population are approximately normally distributed. Solve the probability when a random sample of 41 disks from Company B has a mean running times that at most 15 minutes more than the mean running times of a random sample of 32 disks from Company A.
The average running times of disks produced by Company A is 88.1 minutes and a standard deviation of 6.1 minutes, while Company B obtained a mean running times of 99.3 minutes with a standard deviation of 13.6 minutes. Assume the population are approximately normally distributed. Solve the probability when a random sample of 41 disks from Company B has a mean running times that at most 15 minutes more than the mean running times of a random sample of 32 disks from Company A.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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![The average running times of disks produced by Company A is 88.1 minutes
and a standard deviation of 6.1 minutes, while Company B obtained a mean
running times of 99.3 minutes with a standard deviation of 13.6 minutes.
Assume the population are approximately normally distributed. Solve the
probability when a random sample of 41 disks from Company B has a mean
running times that at most 15 minutes more than the mean running times of a
random sample of 32 disks from Company A.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3286cf46-7577-4db3-91d7-6481a92eca42%2Fb8f7e9eb-92c3-4fab-8dc4-3a1a2ddcfe08%2Fjfg1sfoi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The average running times of disks produced by Company A is 88.1 minutes
and a standard deviation of 6.1 minutes, while Company B obtained a mean
running times of 99.3 minutes with a standard deviation of 13.6 minutes.
Assume the population are approximately normally distributed. Solve the
probability when a random sample of 41 disks from Company B has a mean
running times that at most 15 minutes more than the mean running times of a
random sample of 32 disks from Company A.
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