A manufacturer knows that their items have a lengths that are approximately normally distributed, with a mean of 9.6 inches, and standard deviation of 3 inches. If 30 items are chosen at random, what is the probability that their mean length is greater than 8.2 inches?
A manufacturer knows that their items have a lengths that are approximately normally distributed, with a mean of 9.6 inches, and standard deviation of 3 inches. If 30 items are chosen at random, what is the probability that their mean length is greater than 8.2 inches?
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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A manufacturer knows that their items have a lengths that are approximately
If 30 items are chosen at random, what is the probability that their mean length is greater than 8.2 inches?
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