Mathematics, 30.11.2021 15:10 kaymillsaps

A random sample of 30 professional tennis players is selected. For each tennis player, their first serve percentage and their second serve percentage are recorded. A 95% confidence interval for the mean difference (first - second)
in serve percentages is found to be 0.10 to 0.18. A tennis coach claims that there is no difference in first and
second serve percentages among professional tennis players. Is this claim supported by the confidence interval?
O No, the confidence interval does not contain the value of 0.
O Yes, the confidence interval does not contain the value of 0.
O No, the confidence interval does not contain negative numbers.
O Yes, the confidence interval consists entirely of positive numbers.

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A random sample of 30 professional tennis players is selected. For each tennis player, their first s...