Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 789 babies born in New York. The mean weight was 2941 grams with a standard deviation of 866 grams. Assume that birth weight data are approximately bell-shaped. Part 1 of 3 (a) Estimate the number of newborns whose weight was less than 4673 grams. Approximately of the 789 newborns weighed less than 4673 grams. Part 2 of 3 (b) Estimate the number of newborns whose weight was greater than 2075 grams. Approximately of the 789 newborns weighed more than 2075 grams. Part 3 of 3 (c) Estimate the number of newborns whose weight was between 2941 and 3807 grams. Approximately of the 789 newborns weighed between 2941 and 3807 grams