(a) What is the sample mean years to maturity for corporate bonds and what is the sample standard deviation?
x=_____yr
s=_____yr
(b) Develop a 95%confidence interval for the population mean years to maturity.
____yr to ____yr
(c) What is the sample mean yield on corporate bonds and what is the sample standard deviation?
x=_____yr
s=_____yr
(d) Develop a 95% confidence interval for the population mean yield on corporate bonds.
____yr to ____yr
