A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 200,000 children were randomly divided in two groups. The subjects in group 1 (the experimental group) were given the vaccine, while the subjects in group 2 (the control group) were given a placebo. Of the 100,000 children in the experimental group, 24 developed the disease. Of the 100,000 children in the control group, 42 developed the disease. Complete parts (a) through (f) below. O A. The number of subjects is so large because the vaccine is not very effective. B. The number of subjects is so large because these are clinical trials, which require a significant number of subjects. OC. The number of subjects is so large because the vaccine is very effective. D. The number of subjects is so large because there is a low incidence rate of the disease. E. The number of subjects is so large because a large sample size is needed to ensure that the samples are independent. (f) Does it appear to be the case that the vaccine was effective? Use the a = 0.05 level of significance. First verify the model requirements. Select all that apply.
A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 200,000 children were randomly divided in two groups. The subjects in group 1 (the experimental group) were given the vaccine, while the subjects in group 2 (the control group) were given a placebo. Of the 100,000 children in the experimental group, 24 developed the disease. Of the 100,000 children in the control group, 42 developed the disease. Complete parts (a) through (f) below. O A. The number of subjects is so large because the vaccine is not very effective. B. The number of subjects is so large because these are clinical trials, which require a significant number of subjects. OC. The number of subjects is so large because the vaccine is very effective. D. The number of subjects is so large because there is a low incidence rate of the disease. E. The number of subjects is so large because a large sample size is needed to ensure that the samples are independent. (f) Does it appear to be the case that the vaccine was effective? Use the a = 0.05 level of significance. First verify the model requirements. Select all that apply.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A doctor released the results of clinical trials for a vaccine to prevent a particular disease. In these clinical trials, 200,000 children were randomly divided in two
groups. The subjects in group 1 (the experimental group) were given the vaccine, while the subjects in group 2 (the control group) were given a placebo. Of the
100,000 children in the experimental group, 24 developed the disease. Of the 100,000 children in the control group, 42 developed the disease. Complete parts
(a) through (f) below.
A. The number of subjects is so large because the vaccine is not very effective.
OB. The number of subjects is so large because these are clinical trials, which require a significant number of subjects.
c. The number of subjects is so large because the vaccine is very effective.
D. The number of subjects is so large because there is a low incidence rate of the disease.
E. The number of subjects is so large because a large sample size is needed to ensure that the samples are independent.
(f) Does it appear to be the case that the vaccine was effective? Use the a = 0.05 level of significance.
First verify the model requirements. Select all that apply.
| A. The data come from a population that is normally distributed.
B. The samples are dependent.
c. The sample size is more than 5% of the population size for each sample.
D. The sample size is less than 5% of the population size for each sample.
E. nôi (1-P1) 2 10 and nap2 (1-P2) 2 10
O F. The samples are independent.
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