Solution for QID #109887: Based on historical daily stock prices for the first year af | StudyHelpMe

Based on historical daily stock prices for the first year after an IPO, the typical rate of return and the standard deviation for an IPO in the first year is 57% and 26% respectively. Assume these returns follow a normal distribution.    a) There is a 20% probability returns for a new IPO will be above what number?  b) What is the probability the rate of return for a new IPO will be positive?  c) What is the probability of returning exactly 57%?  d) What is the 95% confidence interval about the mean for the expected returns for a new IPO?   (I think rate of return is the mean?)