Assume that? women's heights are normally distributed with a mean given by μ=62.6 in?, and a standard deviation given by sigma σ=2.2 in.
?(a) If 1 woman is randomly? selected, find the probability that her height is less than 63 inches.
?(b) If 38 women are randomly? selected, find the probability that they have a mean height less than 63 inches.
?(?a) The probability is approximately _____________
?(Round to four decimal places as? needed.)
?(b) The probability is approximately ______________.
?(Round to four decimal places as? needed.)