A stock has an expected return of 5.4% and a standard deviation of 19.7%.
What is the 68%, 95%, and 99% confidence interval for this stock? (Show your answer to the nearest 3 decimals)
Upper range of 68% confindence interval = ______________
Lower range of 68% confindence interval = _____________
Upper range of 95% confindence interval = _____________
Lower range of 95% confindence interval = _____________
Upper range of 99% confindence interval = ___________
Lower range of 99% confindence interval = ____________