1. [2 points] A recent Pew Research study concluded that 51% of U.S. adults would agree with the statement "We should pay less attention to problems overseas and concentrate on problems here at home." A news organization randomly sampled 400 U.S teenagers and found that just 168 of those teenagers agree with that statement. We wish to understand if this indicates that teenagers are less likely to agree with the statement than adults. The correct null and hypotheses for testing this claim are: a. H0:p=0.51 and HA:p<0.51 b. H0:p=0.42 and HA:p>0.42 c. H0:p<0.51 and H:p= 0.51 d. H0:p=0.42 and HA:p<0.42 e. H0:p=0.51 and HA:p>0.51 f. H0:=0.42 and HA:<0.42.