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Suppose the returns on long-term corporate bonds and T-bills are normally distributed. Assume for a certain time period, long-term corporate bonds had an average return
Suppose the returns on long-term corporate bonds and T-bills are normally distributed. Assume for a certain time period, long-term corporate bonds had an average return of 6.5 percent and a standard deviation of 8.5 percent. For the same period, T-bills had an average return of 3.3 percent and a standard deviation of 3.1 percent. Use the NORMDIST function in Excel to answer the following questions: a. What is the probability that in any given year, the return on long-term corporate bonds will be greater than 10 percent? Less than 0 percent? Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. b. What is the probability that in any given year, the return on T-bills will be greater than 10 percent? Less than 0 percent? Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. c. In 1979 , the return on long-term corporate bonds was 4.18 percent. How likely is it that such a low return will recur at some point in the future? T-bills had a return of 10.38 percent in this same year. How likely is it that such a high return on T-bills will recur at some point in the future? Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16
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