Using the descriptive statistics for the weight of the babies in ounces suppose a friend of yours has given birth to a 10 pound 3 ounce baby. Is this unusual? why or why not?

Answer 1

What are the descriptive statistics for newborn weights? Just from my personal experience with newborns, that is an unusually heavy baby.

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. Use that data to indicate how usual the weight is.