"For the following situation identify the sample.
The Florida Fish and Wildlife Conservation Commission manatee mortality has information on cause of death and size for all manatees killed off Florida waters. We decide to split the cause of death into watercraftnatural causesstressand other. From within each of these groups a random sample of 25 manatees are selected."
The sample consists of
a) All manatees killed off Florida waters
b) A random sample of 25 manatees from each cause of death category
c) A random sample of 100 manatees from all cause of death categories
d) A random sample of 25 manatees from each size category
