15. Use complete sentences to describe the advantages of researchers using blind and double- blind studies. Then provide a couple of disadvantages in using blind and double-blind studis. (4 points) 16, Use two or three complete sentences to explain why the following statement may be a bit misleading in a poll: \"Should Americans save more money now that the pandemic is mostly over or should they continue their wasteful spending?" (3 points) Experiments help us to better understand the world around as. Norway once used test subjects for four years to test a new vaccine against the deadly bacteria meningococcus b. The researchers told the test subjects that 'it is unlikely to cause serious complications.\" The vaccine trial was stopped when the researchers actually discovered that more than 500 side effects were reported Corsider the new Covid 19 vaccine and write a few sentences about some of the side effects that have occurred in some of the people who were fully vaccinated, Express any support or concerns you might have about the vaccine, (4 points)