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Question 7: (from chapter 10) The table below gives the gold medal times for every other Summer Olympics for the women's loll-meter freestyle (swimming). 'i_ m_ m_ 1976 mm- m a. Decide which variable should be the independent variable and which should be the dependent variable. b. Draw a scatter plot of the data. c. Does it appear from inspection that there is a relationship between the variables? Why or why not? d. Calculate the least squares line. Put the equation in the form of: y=a+bx e. Find the correlation coefcient. Is the decrease in times signicant? f. Find the estimated gold medal time for 1932. Find the estimated time for 1984