# Answer to Question #18277 in Statistics and Probability for jason

Question #18277

The standard deviation of a stock is commonly used as one indicator for the risk associating the stock. To analyze the risk, or volatility, associated with investing in Chevron Corporation common stock, a sample of the monthly total percentage return for 12 months was taken. The returns for the 12 months of 2005 show that the average monthly return was 1.17% and standard deviation 7.58% in these 12 months. You have a portfolio with similar average return and a standard deviation 8%. Is the Chevron stock riskier than the portfolio? (p-value approach, =1%)

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