A lab screens for the COVID-19 virus. A person that carries the virus is screened positive...
A lab screens for the COVID-19 virus. A person that carries the
virus
is screened positive in only 95% of the cases. A person who does
not
carry the virus is screened positive in 1% of the cases. Given
that
0.5% of the population carries the virus, what is the probability
that
a person who has been screened positive is actually a carrier?
Give
interpretation of your findings.
Homework Answers
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A lab screens for the COVID-19 virus. A person that carries the
virus
is screened positive...
A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the tim...
A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 8% of the time if the person does not have the virus. (This 8% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive". a) Find the probability that a person has the virus...
COVID 19 is a positive sense single stranded RNA virus. Which of the following is the...
COVID 19 is a positive sense single stranded RNA virus. Which of the following is the case, given this information? It integrates its RNA into a host cell this group of viruses is not generally known to infect humans It requires viral reverse transcriptase to convert its genome into a positive sense RNA strand it has a double stranded genome the genome does not need to be transcribed in order for viral proteins to be produced
Data is given on the number of patients who tested positive for COVID-19 on April 5th,...
Data is given on the number of patients who tested positive for COVID-19 on April 5th, 2020 in different cities in Alberta (AB). The following represents the boxplot for this dataset. H O 10 20 30 40 50 60 70 80 90 Fill in the Correct Answer for each Part: Part 1: 25% of cities in AB have fewer than how many positive COVID-19 cases? (1 mark) Part 2: 50% of cities in AB have more than how many positive...
MATH 227 - Introduction to Probability and Statistics Module 5 Homework Name: Activity 2: Coronavirus Testing...
MATH 227 - Introduction to Probability and Statistics Module 5 Homework Name: Activity 2: Coronavirus Testing Assume there is a test for the SARS-CoV-2 virus (the virus that causes COVID-19) that is 98% accu- rate; i.e. if someone has the SARS-CoV-2 virus the test will be positive 98% of the time, and if one does not have it, the test will be negative 98% of the time. Assume further that 0.5% of the population actually has the SARS-CoV-2 virus. Imagine...
A couple, married for 65 years, have both become ill with COVID-19. While the husband has...
A couple, married for 65 years, have both become ill with COVID-19. While the husband has smoked for 40 years, he is on a ventilator. His wife, who has no cognitive issues, is mildly ill. The nurse’s instructions are for the wife to go to a unit treating patients suffering mildly from COVID-19. The wife refuses to leave. What is the nurses’ best next action? Listen to how she feels about her life changing situation, then discuss the medical risks...
1. For the choirmaster. A psalm of David. 2. Hear.my.troubles, O God. Kesp.me.safe from terror, T...
1. For the choirmaster. A psalm of David. 2. Hear.my.troubles, O God. Kesp.me.safe from terror, The Department of Health of a certain state estimates a 10% rate of HIV for the general population Tests for HIV are 95% accurate in detecting both true negatives and true positives. Random see 5000 "at risk people and 20,000 people from the general population results in the following table. Use the table below to complete parts (a) through (e). at risk population and a...
International business in the Aftermath of Corona Virus. based on the article from Italy coronavirus deaths...
International business in the Aftermath of Corona Virus. based
on the article from Italy coronavirus deaths at 5,476 after 651
rise: Live updates.
please and the question below thanks.
1. With all the deaths happening in Italy, China, and all around the world, what do you think the impact will be upon international business? Will it stop? Will it slow down? 2. Secondly, as students of international business I have to assume that you are interested in doing business abroad....
Due to the current pandemic, many Canadian grocery stores - such as Sobeys, Walmart, Safeway, and...
Due to the current pandemic, many Canadian grocery stores - such as Sobeys, Walmart, Safeway, and others have announced that their first hour of business every day is reserved for senior citizens and other vulnerable consumers. This gives these consumers first access to the store upon opening, when it is fully stocked for the day and freshly cleaned. This is the opposite of one of the criticisms of marketing. Which criticism is this the opposite of? O A. Overselling of...
The data of a major referral hospital showed that most patients with ischemic heart disease (IHD)...
The data of a major referral hospital showed that most patients with ischemic heart disease (IHD) were black American. Based on this, it was concluded that black Americans are at higher risk of IHD compared to other community groups. How would you describe the conclusion? A. Correct, because risk factors for IHD are more common in black African American. B. Incorrect, because no test of statistical significance has been made C. Incorrect, because prevalence is used instead of incidence D....
The data of a major referral hospital showed that most patients with ischemic heart disease (IHD)...
The data of a major referral hospital showed that most patients with ischemic heart disease (IHD) were black American. Based on this, it was concluded that black Americans are at higher risk of IHD compared to other community groups. How would you describe the conclusion? A. Correct, because risk factors for IHD are more common in black African American. B. Incorrect, because no test of statistical significance has been made C. Incorrect, because prevalence is used instead of incidence D....
A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 8% of the time if the person does not have the virus. (This 8% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive". a) Find the probability that a person has the virus...
Data is given on the number of patients who tested positive for COVID-19 on April 5th, 2020 in different cities in Alberta (AB). The following represents the boxplot for this dataset. H O 10 20 30 40 50 60 70 80 90 Fill in the Correct Answer for each Part: Part 1: 25% of cities in AB have fewer than how many positive COVID-19 cases? (1 mark) Part 2: 50% of cities in AB have more than how many positive...
MATH 227 - Introduction to Probability and Statistics Module 5 Homework Name: Activity 2: Coronavirus Testing Assume there is a test for the SARS-CoV-2 virus (the virus that causes COVID-19) that is 98% accu- rate; i.e. if someone has the SARS-CoV-2 virus the test will be positive 98% of the time, and if one does not have it, the test will be negative 98% of the time. Assume further that 0.5% of the population actually has the SARS-CoV-2 virus. Imagine...
1. For the choirmaster. A psalm of David. 2. Hear.my.troubles, O God. Kesp.me.safe from terror, The Department of Health of a certain state estimates a 10% rate of HIV for the general population Tests for HIV are 95% accurate in detecting both true negatives and true positives. Random see 5000 "at risk people and 20,000 people from the general population results in the following table. Use the table below to complete parts (a) through (e). at risk population and a...
International business in the Aftermath of Corona Virus. based
on the article from Italy coronavirus deaths at 5,476 after 651
rise: Live updates.
please and the question below thanks.
1. With all the deaths happening in Italy, China, and all around the world, what do you think the impact will be upon international business? Will it stop? Will it slow down? 2. Secondly, as students of international business I have to assume that you are interested in doing business abroad....
Due to the current pandemic, many Canadian grocery stores - such as Sobeys, Walmart, Safeway, and others have announced that their first hour of business every day is reserved for senior citizens and other vulnerable consumers. This gives these consumers first access to the store upon opening, when it is fully stocked for the day and freshly cleaned. This is the opposite of one of the criticisms of marketing. Which criticism is this the opposite of? O A. Overselling of...
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