The weight of adult males has a mean of 65 kg and a standard deviation of 20
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Question:
The weight of adult males has a mean of 65 kg and a standard deviation of 20 kg. The distribution is not normal. Suppose that a sample of size 16 is big enough for the central limit theorem to apply to the average weight of a random sample of adult males.
(a) What is the probability that the average weight of 16 randomly selected males will exceed 75 kg?
(b) Find the 90% range within which the average weight of a random sample of 16 adult males will lie.
(c) Find the 90% range if the random sample was 100 adult males.
Related Book For
Statistics The Exploration & Analysis of Data
ISBN: 978-1133164135
7th edition
Authors: Roxy Peck, Jay L. Devore
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