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Suppose this is a representative sample of births in a

Question: The following data shows birthweights (oz) from seven consecutive deliveries at the Johns Hopkins Hospital in April 2007:121 138 32 100 58 64 146

a) Calculate the sample mean birthweight

b) Calculate the sample median birthweight

c) Calculate the sample standard deviation of these birthweights

d) What population could this sample represent?

e) Suppose this is a representative sample of births in a given year at Johns Hopkins. Suppose, instead of a sample of seven values, we have a sample of 100 birthweights. How should the mean, median, and standard deviation of this sample compare to the same statistics for the sample of seven birthweights?

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