Question: Double header 2006. Do the data in Exercise 21 suggest that the American League s designated hitter rule may lead to more runs? a) Using

Double header 2006. Do the data in Exercise 21 suggest that the American League s designated hitter rule may lead to more runs?

a) Using a 95% confidence interval, estimate the difference between the mean number of runs scored in American and National League games.

b) Interpret your interval.

c) Does that interval suggest that the two leagues may differ in average number of runs scored per game?

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