A hitters on-base percentage (OBP) is calculated as follows: (Hit-by-Pitcher + Walks + Hits ) / (At

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A hitter’s on-base percentage (OBP) is calculated as follows:

(Hit-by-Pitcher + Walks + Hits ) / (At Bats + Hit-by-Pitcher + Walks + Sacrifice Flies)

A hitter’s slugging percentage (SLG) is the total bases (home runs gets credit for four bases, triples get three, doubles, two, and singles, one) divided by at-bats. The file named OPSslug.xlsx contains hitting data for Major League Baseball teams during the 2000–2006 seasons. Use this data to build a model that can be used to predict runs scored by a team from a team’s OBP and SLG.

  • Would you recommend a team use this model or the model from Problem 9 to predict runs scored?
  • How could this model be used to evaluate an individual player’s hitting abilities?
  • Why might you be skeptical if this model were used to evaluate the hitting ability of a truly great hitter, like Albert Pujols (who was then playing for the St. Louis Cardinals)?
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