4. The birthweight of babies in the U.S. is normally distributed with a mean of 7.17 pounds and a standard deviation of 0.83 pounds. (Source a. Draw a reasonable picture of the distribution with parameters and percentages properly marked and labeled, up to 3 standard deviations from the mean. b. Roughly 95% of all newborns weigh between and pounds c. What percentage of newborns weigh less than 5.51 pounds? 130 d. What percentage of newborns weigh between 6.34 and 9.66 pounds? e. Would it be unusual for a baby to weigh more than 8 pounds? Explain. N 5. True or False: If False, explain. a. The mean is the score at the 50th percentile. b. The standard deviation of a data set cannot be negative. c. If the median is significantly smaller than the mean, the data set is negatively skewed