question 18

Sea turtles typically lay their eggs at night and then return to the sea, leaving their young to hatch on their own. A marine biologist wishes to evaluate how early trauma and injury affect juvenile turtle growth. She selects 2 hatchlings (baby turtles) weighing approximately 60 ounces from each of 24 randomly-selected turtle nests. Of these 2 hatchlings from each nest, one hatchling has experienced some sort of early trauma before being hatched, determined by markings on the eggs, and the other has not. The increase in growth for the first 16 weeks of their lives is recorded. Which of the following is this an example of? Select one. Select one: O a. Matched pairs design O b. Randomized block design O c. Cluster random sampling O d. Stratified random sampling