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The stock market in France reported strong returns in 2013

The stock market in France reported strong returns in 2013. The population of stocks earned a mean return of 15.23% in 2013. (Data extracted from The Wall Street Journal, January 2, 2014, p. R5.) Assume that the returns for stocks on the French stock market were distributed as a normal variable, with a mean of 15.23 and a standard deviation of 20. If you selected a random sample of 16 stocks from this population, what is the probability that the sample would have a mean return

a. less than 0 (i. e., a loss)?

b. between - 10 and 10?

c. greater than 10?

a. less than 0 (i. e., a loss)?

b. between - 10 and 10?

c. greater than 10?

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