Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals
overhead width: 7.0 7.5 9.9 9.3 8.6 8.2
weight: 109 195 253 197 192 184
a. Construct a scatter plot, find the value of the linear correlation coefficient r, and find the critical values of r from Table A-6 using a = 0.05.
b. Is there sufficient evidence to conclude that there is a linear correlation between the proportion of wins and the above difference?