p= the proportion of Americans with Type A blood. p is unknown. Someone claims that " 30% of Americans have Type A blood". You suspect that the true proportion in the population is less than 30% and will do a hypothesis test. First you estimate p by randomly selecting 80 Americans, and 20 have Type A blood. Answer questions 1719. 17. First, compute a 90% confidence interval for p. 18. What is the null (H0) and alternative (Ha) hypothesis for your hypothesis test? 19. In your sample, 20 out of 80 Americans had Type A blood. If instead you had observed 200 out of 800 , then the p-value of the hypothesis test would have been Circle one answer. a) smaller b) larger c) the same d) Not enough information has been provided to answer this question..

1. p= the proportion of Americans with Type A blood. p is unknown. Someone claims that " 30%
of Americans have Type A blood". You suspect that the true proportion in the population is less
than 30% and will do a hypothesis test. First you estimate p by randomly selecting 80
Americans, and 20 have Type A blood. Answer questions 1719. 17. First, compute a 90%
confidence interval for p. 18. What is the null (H0) and alternative (Ha) hypothesis for your
hypothesis test? 19. In your sample, 20 out of 80 Americans had Type A blood. If instead you
had observed 200 out of 800 , then the p-value of the hypothesis test would have been Circle one
answer. a) smaller b) larger c) the same d) Not enough information has been provided to answer
this question.