Grandfather clocks use pendulums to keep accurate time. The relationship between the length of a pendulum L and the time T for one complete oscillation can be determined from the data in the table shown. a. Find the least squares line equation and graph it simultaneously with the data​ points, with L as the horizontal axis and T as the vertical axis. Does it seem to fit the​ data? b. Find the correlation coefficient and interpret it. Does it confirm your answer to part​ (a)?