Consider the Following Proposed Determining Function for the Winning Percentage

question 26

Multiple Choice

Consider the following proposed determining function for the winning percentage of baseball teams WinPct_i = 0.500 - 0.1 Team ERA_i + 0.2 Team BA_i + U_i, where Team ERA is the team earned run average, and Team BA is the team batting average. What is the effect (change) on winning percentage from an increase in Team ERA from 2.3 to 3.3?

• A) 0.510
• B) 0.600
• C) A decrease of 0.1 in winning percentage
• D) There is not enough information

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