Empirical research on stock market data indicates that over the course of a year, 40% of stocks go up. A random sample o

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Empirical Research On Stock Market Data Indicates That Over The Course Of A Year 40 Of Stocks Go Up A Random Sample O 1 (27.74 KiB) Viewed 14 times

Empirical research on stock market data indicates that over the course of a year, 40% of stocks go up. A random sample of 600 stocks is going to be chosen at the beginning of next year. Let p be the proportion of the stocks in the sample that go up over the course of a year. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p. (b) Find the standard deviation of p. П (c) Compute an approximation for P<0.42), which is the probability that fewer than 42% of the stocks in the sample go up over the course of the year. Round your answer to four decimal places.