= Homework: C... Question 13, 9.1.15-T HW Score: 31.8%, 49.92 of 157 points O Save Part 2 of 7 Points: 2 of 6 Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 44 of the 50 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 96 of the 111 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo What are the null and alternative hypotheses for the hypothesis test? OA. Ho P1 2 P2 OB. Ho PISP2 OC. Ho - P1 = P2 HP1 / P2 H1 P1 / P2 H1 P1 P2 H1 : P1 7 P2 Identify the test statistic. (Round to two decimal places as needed.)