1 Suppose we want to test the claim that the probability of a Canadian quarter coming up heads is 50%. We ip the coin n=20 times and obtain x=10 heads. What is the correct conclusion ofthe hypothesis test? Use significance level d=0.05. . . ' O a. We have sufficient evidence to support the claim that the coin is fair. 0 b.We have insufficient evidence to support the claim that the coin is fair. 0 c. We have sufficient evidence to reject the claim that the coin is fair. 0 d.We have insufficient evidence to reject the claim that the coin is fair. QUESTION 2 Suppose we would like to test the claim that more than 80% ( > 80%) of Canadians are willing to receive a vaccine for COVID-19 once a vaccine is found. (We are assuming that the threshold for herd immunity is 80%.) What are the appropriate null and alternative hypotheses to test this claim? 0 a. Ho:p > 0.8 and lep s 0.8 O b. Hozp > 0.8 and lep = 0.8 O c, Ho:p= 0.8 and H1:p< 0.8 0 d. Ho:p= 0.8 and H1:p> 0.8