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l 0 You clock 27 of Walter Johnson's fastballs, obtaining a mean of 100.7 mph, with a standard deviation of 2.2 mph. To a 1

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l 0 You \"clock\" 27 of Walter Johnson's fastballs, obtaining a mean of 100.7 mph, with a standard deviation of 2.2 mph. To a 1 % level of significance, can it be asserted that the average Johnson fastball (in general) is over 100 mph? [Assume that the \"speeds\" of all of J ohnson's fastballs are normally distributed]

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