(Answered) Question the following table lists the midterm and final

Statistics

Question: The following table lists the midterm and final exam scores for seven students in a statistics class.

a. Do you expect the midterm and final exam scores to be positively or negatively related?

b. Plot a scatter diagram. By looking at the scatter diagram, do you expect the correlation coefficient between these two variables to be close to zero, 1, or - 1?

c. Find the correlation coefficient. Is the value of r consistent with what you expected in parts a and b?

d. Using the 1% significance level, test whether the linear correlation coefficient is positive.

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