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Part 1

The accompanying data are the caloric contents and the sugar contents (in grams) of

11

high-fiber breakfast cereals. 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) xequals=150 cal

(b) xequals=90 cal

(c) xequals=175 cal

(d) xequals=208 cal

Calories, x Sugar, y 140 6 190 9 160 6 160 8 180 11 180 16 190 14 210 18 190 20 170 9 170 9