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In: Statistics and Probability

e) With the increase in talent and home run hitting ability in the MLB, it is...

e) With the increase in talent and home run hitting ability in the MLB, it is speculated that the size of the baseballs has changed. In the past the mean diameter of the baseballs was 2.5 inches. The sample mean and sample standard deviation of the diameter of n =100 baseballs used recently were 2.45 inches and 0.30 inches respectively. Can we conclude at 5% level of significance that the mean diameter of the baseballs used recently is not 2.5 inches?
21. Yes 22. No 23. Need more testing 24. Need more data
25. Should ask experts

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Expert Solution

orchestra answered 1 year ago
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