Question
. Suppose that X is a normal random variable, with its mean of 3 and its standard deviation of 2. (a) Suppose that David is
. Suppose that X is a normal random variable, with its mean of 3 and its standard deviation of 2.
(a) Suppose that David is going to randomly choose a sample of 10 observations from this population. What is the probability that the sample mean of X exceeds 3.2?
(b) If David increases the sample size to 50, what is the probability that the sample mean exceeds 3.2?
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Microeconomics
Authors: Roger A. Arnold
12th Edition
1285738306, 978-1285738307
