The accompanying data are the length (in centimeters) and girths (in centimeters) of

12

harbor seals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain why not.

(a) x=140 cm

(b) x=172 cm

(c) x=164 cm

(d) x=158 cm

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Part 1

The equation of the regression line is

y=enter your response herex+enter your response here.

(Round to two decimal places as needed.)

Length, x Girth, y 138 106 168 131 152 117 145 106 160 126 160 119 125 102 136 104 156 119 148 111 147 108 147 108