Question

The Fidelity Growth & Income mutual fund received a three-star, or neutral, rating from Morningstar. Shown here are the quarterly percentage returns for the five-year period from 2001 to 2005 (Morningstar Funds 500, 2006).
a. Compute the mean, variance, and standard deviation for the quarterly returns.
b. Financial analysts often use standard deviation as a measure of risk for stocks and mutual funds. Develop a 95% confidence interval for the population standard deviation of quarterly returns for the Fidelity Growth & Income mutual fund.


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  • CreatedSeptember 20, 2015
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