Question: The Following table shows recent study times and test scores for a sample of four students in a Managerial Finance class. a. Compute the covariance

The Following table shows recent study times and test scores for a sample of four students in a Managerial Finance class.

a. Compute the covariance for study time and test score.
b. Compute the correlation coefficient for study time and test score.
c. Do the data show a high degree of association between study time and test score? Explain.
d. Do the data indicate that increased study time causes higher test scores? Explain.

Study Time hours) Student Score 80 95 90 75 15

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a 10 85 s xy 10 b s x 416 s y 913 r xy 263 c The correlation coefficient of 263 sugg... View full answer

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