Mathematics, 11.11.2019 21:31 schoolemailonlyno1
Rhino viruses typically cause common colds. in a test of the effectiveness of echinacea, 39 of the 45 subjects treated with echinacea developed rhinovirus infections. in a placebo group, 87 of the 101 subjects developed rhinovirus infections. use a 0.01significance 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? a. h0: p1 = p 2h1: p 1 β p2b. h0: p1 β p 2h1: p 1 = p2c. h0: p1 greater then or equal to p 2h1: p 1 β p2d. h0: p1 = p2h1: p1 < p 2e. h0: p 1 β€ p 2h1: p 1 β p 2f. h0: p1 = p 2h1: p1 > p2
b. identify the test statistic. z= (round to two decimal places as needed.)
c. identify the p-value. p-value= (round to three decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 16:30
Which elements in the set below are integers? 12, β3β4,β 25 , β7, β 5 , 14β7, 9 a. 12, β 25 , β7, 9 b. 12, β 25 , β7, 14β7, 9 c. β3β4, 25 , β 5 ,14β7 d. 12, β7, 9
Answers: 2
Mathematics, 21.06.2019 16:30
What could explain what happened when the time was equal to 120 minutes
Answers: 2
Mathematics, 21.06.2019 18:30
Nick has box brads. he uses 4 brads for the first project. nick letβs b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.
Answers: 3
Mathematics, 21.06.2019 20:00
What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.
Answers: 1
Rhino viruses typically cause common colds. in a test of the effectiveness of echinacea, 39 of the 4...
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