Mathematics, 13.03.2020 22:05, amandavelez12122005

In a recent year, some professional baseball players complained that umpires were calling more strikes than the average rate of 61% called the previous year. At one point in the season, umpire Dan Morrison called strikes in 2231 of 3581 pitches (based on data from USA Today). Use a 0.05 significance level to test the claim that his strike rate is greater than 61%.

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In a recent year, some professional baseball players complained that umpires were calling more strik...