Question

In: Statistics and Probability

COVID-19 vaccine was tested in a randomised controlled trial in which 400,000 adults selected from the...

COVID-19 vaccine was tested in a randomised controlled trial in which 400,000 adults selected from the population were divided into two similar groups. Adults in one group were given the vaccine while those in the other group were given a placebo. At a later date the number of adults contracting COVID-19 in each group were determined. In the vaccine group, there were 56 cases of COVID-19 out of 200,000 adults while in the placebo group, there were 142 cases of COVID-19 of the 200,000 adults.

a) Draw a 2 by 2 table

b) Carry out a significance test to compare the incidence of COVID-19 in the two groups

c) Write a brief report on your conclusion about the effectiveness of the COVID-19 vaccine

Solutions

Expert Solution


Related Solutions

COVID-19 vaccine was tested in a randomised controlled trial in which 400,000 adults selected from the...
COVID-19 vaccine was tested in a randomised controlled trial in which 400,000 adults selected from the population were divided into two similar groups. Adults in one group were given the vaccine while those in the other group were given a placebo. At a later date the number of adults contracting COVID-19 in each group were determined. In the vaccine group, there were 56 cases of COVID-19 out of 200,000 adults while in the placebo group, there were 142 cases of...
A randomised controlled trial was conducted to assess the effectiveness of a new eye drop to...
A randomised controlled trial was conducted to assess the effectiveness of a new eye drop to reduce eye pain in patients suffering from a systemic condition affecting both eyes. Each patient received the prescribed dose of the new eye drop in one eye and the same dose of an existing drop in the other eye. The investigators randomised which eye was treated with the new eye drop and which received the existing eye drop. 45 patients were asked to rate...
Explain how missing data in randomised controlled trial will affect the conclusion and what methods can...
Explain how missing data in randomised controlled trial will affect the conclusion and what methods can be used to minimise the effect? (max. 200 words)
Discuss the news article, and write a summary "Johnson & Johnson pauses Covid-19 vaccine trial after...
Discuss the news article, and write a summary "Johnson & Johnson pauses Covid-19 vaccine trial after 'unexplained illness'." By Maggie Fox, CNN
How will a vaccine against the COVID-19 virus be developed?
How will a vaccine against the COVID-19 virus be developed?
A Mexican laboratory developed a new vaccine against COVID-19, which should be stored at an average...
A Mexican laboratory developed a new vaccine against COVID-19, which should be stored at an average daily temperature of 8 degrees, with a standard deviation of 3 degrees. If the distribution of daily temperatures is approximately normal. What is the probability that: A) On a given day the temperature would have been between 6 and 9 degrees B) The first day a temperature of at most 7.1 degrees is reached is before 6 days
In the initial test of the Salk vaccine for polio, 400,000 children were selected and divided...
In the initial test of the Salk vaccine for polio, 400,000 children were selected and divided into two groups of 200,000. One group was vaccinated with the Salk vaccine while the second group was vaccinated with a placebo. Of those vaccinated with the Salk vaccine, 33 later developed polio. Of those receiving the placebo, 115 later developed polio. Test the hypothesis that the Salk vaccine is effective in lowering the polio rate. Use a=0.01. Construct a 99% confidence interval for...
You are CEO of a new firm, DUNSMED, Inc. which has invented a successful Covid-19 vaccine....
You are CEO of a new firm, DUNSMED, Inc. which has invented a successful Covid-19 vaccine. The US government has given you an exclusive patent on the drug for 10 years. The government, in exchange for granting this exclusive patent, wants all 100,000 doses manufactured for the first year. As CEO of the company, you are in charge of pricing for the drug and the Marginal Cost is equal to the Marginal Revenue at a price of $2,000 per dose....
There is a race among scientist to find a treatment option and a vaccine for COVID-19....
There is a race among scientist to find a treatment option and a vaccine for COVID-19. Using your understanding of experimental research designs explain why a treatment option and a vaccine will take time to develop
Identify and explain the externality associated with a vaccine that is developed to address the COVID-19...
Identify and explain the externality associated with a vaccine that is developed to address the COVID-19 pandemic
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT