Newborn babies in the United States have a mean birth weight of 7.5 pounds and a standard deviation of 1.25 pounds.Assume the data possesses a bell-shaped distribution. what are the upper and lower limits of the interval that contains 95% of all newborns in the United States?Does a newborn with a birth weight of 4.25 pounds fall within an interval which contains 95% of the number of dropped calls by all newborns?Show the sigma rules and explain why or why not?