Question

You have just started a new career in veterinary sciences and are studying the effects of lead exposure in domestic dogs in Sarasota, Florida. You have been lucky enough to have a very large sample of 5185 canines. The average blood, lead concentration is 6.4 micrograms/100ml of blood with a standard deviation of 1.1 micrograms/100 ml. The mayor of Sarasota brings in her dog and wants to know if its blood lead levels are typical of dogs in Sarasota. Her dogs blood lead level is 6.78 micrograms/100ml. What percentage of dogs have blood lead levels higher than the mayors? How many dogs have a blood lead level greater than the mayor’s dog? What is the likelihood that a dog will have a blood lead level less than the mayor’s dog. This question requires 3 correct answers. Please show work.

Answer 1