A certain stock market had a mean return of 3.8% in a recent year. Assume that...
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A certain stock market had a mean return of 3.8% in a recent year. Assume that the returns for stocks on the market were distributed normally, with a mean of 3.8 and a standard deviation of 10. Complete parts (a) through (g) below. a. If you select an individual stock from this population, what the probability that it would have a percentage return less than (that is, a loss)? The probability is (Round to four decimal places as needed.) b. If you select an individual stock from this population, what the probability that it would have a percentage return between - 11 and -18? The probability is. (Round to four decimal places as needed.) c. If you select an individual stock from this population, what is the probability that it would have a percentage return greater than - 5? The probability is. (Round to four decimal places as needed.) d. If you select a random sample of four stocks from this population, what is the probability that the sample would have a mean percentage return less than 0 (a loss)? The probability is. (Round to four decimal places as needed.) e. If you select a random sample of four stocks from this population, what is the probability that the sample would have a mean percentage return between 11 and -18? The probability is. (Round to four decimal places as needed.) f. If you select a random sample of four stocks from this population, what is the probability that the sample would have a mean percentage return greater than - 5? The probability is A certain stock market had a mean return of 3.8% in a recent year. Assume that the returns for stocks on the market were distributed normally, with a mean of 3.8 and a standard deviation of 10. Complete parts (a) through (g) below. a. If you select an individual stock from this population, what the probability that it would have a percentage return less than (that is, a loss)? The probability is (Round to four decimal places as needed.) b. If you select an individual stock from this population, what the probability that it would have a percentage return between - 11 and -18? The probability is. (Round to four decimal places as needed.) c. If you select an individual stock from this population, what is the probability that it would have a percentage return greater than - 5? The probability is. (Round to four decimal places as needed.) d. If you select a random sample of four stocks from this population, what is the probability that the sample would have a mean percentage return less than 0 (a loss)? The probability is. (Round to four decimal places as needed.) e. If you select a random sample of four stocks from this population, what is the probability that the sample would have a mean percentage return between 11 and -18? The probability is. (Round to four decimal places as needed.) f. If you select a random sample of four stocks from this population, what is the probability that the sample would have a mean percentage return greater than - 5? The probability is
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Related Book For
Business Statistics A First Course
ISBN: 978-0321979018
7th edition
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
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