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QUESTION
A. b. What is the probability that the sample mean breaking strength for a random sample of 40 rivets is between 9950 and 10,250?
A. b. What is the probability that the sample mean breaking strength for a random sample of 40 rivets is between 9950 and 10,250? If the sample size had been 15 rather than 40, could the probability requested in part (a) be calculated from the given information?
