1. All new-born children are measured and weighed at birth. During the week of Sept 1st to 5th, 25 babies were born. Their weights (in ounces) and lengths (in inches) were recorded. The mean and median weights for the sample of 25 babies were 95 ounces and 120 ounces, respectively and standard deviation 7 ounces. Their lengths (measured from the top of their head to the bottom of one of their heels) was normally distributed with mean 18.5 inches and standard deviation 1.5 inches.Outliers were detected among the sample weights and none among the lengths.

A. Describe the distribution of the weights of all new-born children in this study (i.e. symmetrical, right skewed, ... etc.).

Type of distribution:

B. According to Chebyshev's Theorem At least what percent of the weights will fall between 84.5 ounces and 105.5 ounces?

K =

Percent =

C. According to Chebyshev's Theorem At least 36% of the weights will fall within what range?

K =

L =

U =

D. Estimate the median length of new-born children.

E. Is the mean (95 ounces) or median (120 ounces) the better measurement of the baby's weights?