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
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
Length, x Girth, y
136 105
168 131
151 117
144 106
160 126
159 119
123 102
138 103
156 120
147 111
148 106
147 109
The equation of the regression line is ŷ = ______ x + ______
(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)
(a) x = 140 cm, (b) x = 172 cm, (c) x = 164 cm, (d) x = 158 cm
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.
(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)
(a) Substitute x = 140 into the regression equation and simplify.
(b) Substitute x = 172 into the regression equation and simplify.
(c) Substitute x = 164 into the regression equation and simplify.
(d) Substitute x = 158 into the regression equation and simplify.
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