The accompanying data are the number of wins and the earned runaverages (mean number of earned runs allowed per nine inningspitched) for eight baseball pitchers in a recent season. Find theequation of the regression line. Then construct a scatter plot ofthe data and draw the regression line. Then use the regressionequation to predict the value of y for each of the given x-values.If meaningful. If the x-value is not meaningful to predict thevalue of y, explain why not. (a) x=5 wins (b) x=10 wins (c) x=21wins (d) x=15 wins
The equation of the regression line is y= ? x+? (Round to twodecimal places as needed.)
a. Predict the ERA for 5 wins, if it is meaningful.Select thecorrect choice below and ,if necessary, fill in the answer boxwithin your choice.
A. ^y= ? (Round to two decimal places as needed.)
B. it is not meaningful to predict this value of y because x=5is well outside the range of the original data.
C. It is not meaningful to predict this value of y because x=5is not an x-value in the original data.
(b) Predict the ERA for 10 wins, if it is meaningful.Select thecorrect choice below and, if necessary, fill in the answer boxwithin your choice.
A. y^= ? (Round to two decimal places as needed.)
B. it is not meaningful to predict this value of y because x=10is not an x-value in the original data.
C. it is not meaningful to predict this value of y because x=10is inside the range of the orginal data.
(c) Predict the ERA for 21 wins, if it is meaningful. Select thecorrect choice below and, if necessary, fill in the answer boxwithin your
choice.
A. y^= ? (Round to two decimal places as needed.)
B. It is not meaningful to predict this value of y because x=21is not x-value in the original data.
C. it is not meaningful to predict this value of y because x=21is well outside the range of the original data.
(d) Predict the ERA for 15 wins, if it meaningful. Select thecorrect choice below and,if necessary,fill in the box within yourchoice.
A. y^= ? (Round to two decimal places as needed.)
B. It is not meaningful to predict this value of y because x=15is inside the range of the original data.
C. It is not meaningful to predict this value of y because x=15is not an x-value in the original data.
Wins, x Earned run average, y
20, 2.82
18, 3.24
17, 2.56
16, 3.65
14, 3.79
12, 4.34
11, 3.78
9, 5.07
