A study conducted by the Center for Population Economics at theUniversity of Chicago studied the birth weights of 618 babies bornin New York. The mean weight was 3404 grams with a standarddeviation of 859 grams. Assume that birth weight data areapproximately bell-shaped.
A. Estimate the number of newborns whose weight was less than4263 grams.
Approximately ____ of the 618 newborns weighed less than 4263gram
B. Estimate the number of newborns whose weight was greater than1686 grams.
Approximately ____ of the 618 newborns weighed more than 1686gram
C. Estimate the number of newborns whose weight was between 3404and 5122 grams.
Approximately ____ of the 618 newborns weighed between 3404 and5122 gram