Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 629 babies born in New York. The mean weight was 3206 grams with a standard deviation of 877 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 4083 grams. Approximately of the 629 newborns weighed less than 4083 grams. Part 2 of 3 (b) Estimate the number of newborns whose weight was greater than 1452 grams. Approximately of the 629 newborns weighed more than 1452 grams. Part 3 of 3 (c) Estimate the number of newborns whose weight was between 3206 and 4960 grams.