Essay
A manufacturer of tennis rackets would like to test their new racket.The company sponsors 10 tennis players who will be playing at Wimbledon.To test the racket,they have each player serve 30 times with their old racket.Then they have each player serve 30 times with the new racket.They compare the percentage of good serves with the two rackets.Identify the flaw(s)in this experiment and suggest some improvements.
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