A Manufacturer of Tennis Rackets Has Designed a New Racket

Essay

A manufacturer of tennis rackets has designed a new racket and would like to compare it to their previous design.The company obtains 100 volunteer tennis players.Volunteers are randomly assigned to one of two groups.Group 1 will use the company's previous racket first and the new racket second.Group 2 will use the new racket first and the previous racket second.Each player will serve 30 times with each racket.The percentage of good serves with the two rackets will then be compared.The players are blinded to which racket they are using.Also,the person recording the percentage of good serves is blinded to which racket the player is using.If the group of volunteers consists of 60 professional tennis players and 40 beginners,how could the experiment be improved?