A coach wants to know if baseball players who warm up before a game will score more points than those who don't warm up. He will break the team up into two groups and make sure each player gets equal time on the field. He will then count how many points each player makes during the game. What statistic should he study?

The mean number of points earned by each player

The standard deviation of the number of points
earned by each player

The standard deviation of the number of points earned by each group

The mean number of points earned by each group

Question

A coach wants to know if baseball players who warm up before a game will score more points than those who don't warm up. He will break the team up into two groups and make sure each player gets equal time on the field. He will then count how many points each player makes during the game. What statistic should he study?

The mean number of points earned by each player

The standard deviation of the number of points 
earned by each player 

The standard deviation of the number of points earned by each group 

The mean number of points earned by each group

anonymous · Answer

@thomaster @ganeshie8

anonymous · Answer

@whpalmer4

anonymous · Answer

@KingGeorge  @beccaboo333 @e.mccormick

anonymous · Answer

@ganeshie8

e.mccormick · Answer

First, when you do a study like this, you ook at populations.  Does that help eliminate some options for you?

anonymous · Answer

The answer would be The mean number of points earned by each group

anonymous · Answer

I had put standard deviation, but it ended up being incorrect, sooo ^