The FIFA World Cup was one of the biggest sporting events of 2018. The file WC2018TeamAge contains

Question:

The FIFA World Cup was one of the biggest sporting events of 2018. The file WC2018TeamAge contains average age of the players (years, in 2018) of the 32 teams that qualified for the event.

Decide whether the teams’ mean ages appear to be approximately normally distributed by

a. comparing data characteristics to theoretical properties.

b. constructing a normal probability plot.

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