Rhino viruses typically cause common colds. In a test of the effectiveness of a echinacea, 35 of the 42 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 91 of the 106 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Required:
Test the claim using a hypothesis test.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer