Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 607 babies born in New York. The mean weight was 3310 grams with a standard deviation of 910 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 4220 grams. Approximately 552 of the 607 newborns weighed less than 4220 grams. Part 2 of 3 (b) Estimate the number of newborns whose weight was greater than 1490 grams. Approximately 641 of the 607 newborns weighed more than 1490 grams. Part 3 of 3 (c) Estimate the number of newborns whose weight was between 3310 and 5130 grams. Approximately 313 T of the 607 newborns weighed between 3310 and 5130 grams.

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Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth
weights of 607 babies born in New York. The mean weight was 3310 grams with a standard deviation of 910 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 4220 grams.
Approximately 552T of the 607 newborns weighed less than 4220 grams.
Part 2 of 3
(b) Estimate the number of newborns whose weight was greater than 1490 grams.
Approximately 641 of the 607 newborns weighed more than 1490 grams.
Part 3 of 3
(c) Estimate the number of newborns whose weight was between 3310 and 5130 grams.
Approximately 313T of the 607 newborns weighed between 3310 and 5130 grams.
Transcribed Image Text:Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 607 babies born in New York. The mean weight was 3310 grams with a standard deviation of 910 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 4220 grams. Approximately 552T of the 607 newborns weighed less than 4220 grams. Part 2 of 3 (b) Estimate the number of newborns whose weight was greater than 1490 grams. Approximately 641 of the 607 newborns weighed more than 1490 grams. Part 3 of 3 (c) Estimate the number of newborns whose weight was between 3310 and 5130 grams. Approximately 313T of the 607 newborns weighed between 3310 and 5130 grams.
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