Mathematics, 20.01.2020 10:31 alisonlebron15

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean?

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The first-serve percentage of a tennis player in a match is normally distributed with a standard dev...