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Over the Past 30 Years,the Sample Standard Deviations of the Rates

Question 33

Multiple Choice

Over the past 30 years,the sample standard deviations of the rates of return for stock X and Stock Y were 0.20 and 0.12,respectively.The sample covariance between the returns of X and Y is 0.0096.To determine whether the correlation coefficient is significantly different from zero,the appropriate hypotheses are: ____________.


A) Over the past 30 years,the sample standard deviations of the rates of return for stock X and Stock Y were 0.20 and 0.12,respectively.The sample covariance between the returns of X and Y is 0.0096.To determine whether the correlation coefficient is significantly different from zero,the appropriate hypotheses are: ____________. A) B) C) D)
B) Over the past 30 years,the sample standard deviations of the rates of return for stock X and Stock Y were 0.20 and 0.12,respectively.The sample covariance between the returns of X and Y is 0.0096.To determine whether the correlation coefficient is significantly different from zero,the appropriate hypotheses are: ____________. A) B) C) D)
C) Over the past 30 years,the sample standard deviations of the rates of return for stock X and Stock Y were 0.20 and 0.12,respectively.The sample covariance between the returns of X and Y is 0.0096.To determine whether the correlation coefficient is significantly different from zero,the appropriate hypotheses are: ____________. A) B) C) D)
D) Over the past 30 years,the sample standard deviations of the rates of return for stock X and Stock Y were 0.20 and 0.12,respectively.The sample covariance between the returns of X and Y is 0.0096.To determine whether the correlation coefficient is significantly different from zero,the appropriate hypotheses are: ____________. A) B) C) D)

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