PLEASE HELP!!!
For a sample of eight bears, researchers measured the distances around the bears’ chests and weighed the bears. Minitab was used to find that the value of the linear correlation coefficient is r = 0.878. Using a = 0.05, determine if there is a linear correlation between chest size and weight. What proportion of the variation in weight can be explained by the linear relationship between weight and chest size?
a.Is there a linear correlation between chest size and weight?
b.What proportion of the variation in weight can be explained by the linear relationship between weight and

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