Question
A sports journalist wants to predict the number of wins,y , credited to a professional baseball pitcher for the season, given hisearned run average (mean
A sports journalist wants to predict the number of wins,y
, credited to a professional baseball pitcher for the season, given hisearned run average (mean number of earned runs allowed per nine innings pitched),x
1
; hisnumber of innings pitched,x
2
; and his run support,x
3
, in runs per game for the season. She obtains the multiple regression equationy
=43.2485.351x
1
0.0765x
2
+0.913x
3
. Predict the number of wins credited to a pitcher who pitches190
innings, with an earned run average of3.15
, and whose team scores an average of4.50
runs per game, rounding to the nearest whole number.
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