According to a Bureau of Labor Statistics release of March 25, 2015, financial analysts earn an average

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According to a Bureau of Labor Statistics release of March 25, 2015, financial analysts earn an average of $110,510 a year. Suppose that the current annual earnings of all financial analysts have the mean and standard deviation of $110,510 and $30,000, respectively. Find the probability that the average annual salary of a random sample of 400 financial analysts is
a. More than $112,610
b. Less than $108,100
c. $109,300 to $113,350

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