Question: Most powerful business women in America. Fortune (October 16, 2008) published a list of the 50 most powerful women in business in the United States. The data on age (in years) and title of each of these 50 women are stored in the WPOWER50 file. The first five and last five observations of the data set are listed in the table below.
(a) Find the mean and standard deviation of these 50 ages.
(b) Give an interval that is highly likely to contain the age of a randomly selected woman from the Fortune list.