s of the trees in a park have mean 18.6 years and standard deviation 6.8 years. (a) If we pick a simple random sample of 40 trees in this park, what is the probability that their average height will be between 15 and 20 feet? (b) If we pick a simple random sample of 95 trees in this park, what is the probability that their average height will be between 15 and 20 feet?
s of the trees in a park have mean 18.6 years and standard deviation 6.8 years. (a) If we pick a simple random sample of 40 trees in this park, what is the probability that their average height will be between 15 and 20 feet? (b) If we pick a simple random sample of 95 trees in this park, what is the probability that their average height will be between 15 and 20 feet?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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The ages of the trees in a park have mean 18.6 years and standard deviation
6.8 years.
(a) If we pick a simple random sample of 40 trees in this park, what is the probability that their average height will be between 15 and 20 feet?
(b) If we pick a simple random sample of 95 trees in this park, what is the probability that their average height will be between 15 and 20 feet?
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