Question: In exercise 9.64, you could reject the null hypothesis that the mean weights of soccer and baseball players were equal using a two-tailed test with

In exercise 9.64, you could reject the null hypothesis that the mean weights of soccer and baseball players were equal using a two-tailed test with a significance level of 0.05.

a. If you found a 95% confidence interval for the difference between means, would it capture 0? Explain.

b. If you found a 90% interval, would it capture 0? Explain.

c. Now go back to exercise 9.64. Find a 95% confidence interval for the difference between means, and explain what it shows.

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