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The following are independent random variables: a X: Normal with mean 2 and variance 16; 0 Y: Normal with mean 0 and variance 25 0

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The following are independent random variables: a X: Normal with mean 2 and variance 16; 0 Y: Normal with mean 0 and variance 25 0 Z: x2 with 6 degrees of freedom Answer the following questions: (a) For what values of is: and c does kZ / (Y X - e)2 have an F distribution? What degrees of freedom does it have? (4)

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