Mathematics, 28.04.2021 19:30 haleyehewitt2001
Birth weights of newborns are normally distributed with a mean of 10 lbs. and a standard deviation of 4.5 lbs. One selects 32 women randomly and calculates the sample mean birth weight of their children. A. (4 pts.) Determine the sampling distribution of sample mean birth weight. Also, find mean and standard deviation of the sampling distribution. B. (4 pts.) Find the probability that the sample mean of 32 randomly selected babies is greater than 8 lbs.
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