A sample of years to maturity and yield for
40corporate bonds taken from Barron's is given below. a. What is the sample mean years to maturity for corporate bonds and what is the sample standard deviation? Mean years (to 2 decimals) Standard deviation years (to 2 decimals) b. Develop a
95%confidence interval for the population mean years to maturity. Round the answer to tw decimal places. years c. What is the sample mean yield on corporate bonds and what is the sample standard deviation? Mean
%(to 4 decimals) Standard deviation
%(to 4 decimals) d. Develop a
95%confidence interval for the population mean yield on corporate bonds. Round the answ to four decimal places.
