Question

In: Statistics and Probability

The outbreak of a new virus has recently reached Connecticut. According to CDC, since diahrrea is...

The outbreak of a new virus has recently reached Connecticut. According to CDC, since diahrrea is a rare symptom, the shortage of toilet paper is not related to the event. There are 169 towns in the state. In 70 towns there is no toilet paper shortage. In 20 towns some patients tested positive for the virus. In 9 towns there were positive tests and the toilet paper shortage. Are the events ’shortage of toilet paper’ and ’new virus’ outbreak dependent or independent? What’s the probability of the presence of the virus in a random town given the toilet paper shortage?

Solutions

Expert Solution

Observed (O)
New Virus Total
Positive Negative
Toilet paper Shortage Yes 9 90 99
No 11 59 70
Total 20 149 169
Expected (E )
New Virus
Positive Negative
Toilet paper Shortage Yes 11.72 87.28
No 8.28 61.72
(O-E)^2/E
New Virus
Positive Negative
Toilet paper Shortage Yes 0.63 0.08
No 0.89 0.12

Null Hypothesis: There is no association between the events ’shortage of toilet paper’ and ’new virus’ outbreak.

Alternative Hypothesis: There is an association between the events ’shortage of toilet paper’ and ’new virus’ outbreak.

orchestra answered 2 years ago
Next > < Previous

Related Solutions

An outbreak of a new virus has swept across a large city with over a million...
An outbreak of a new virus has swept across a large city with over a million residents. City officials do not yet have the ability to conduct widespread testing of residents to determine the scope to which the virus has spread. In a random sample of 200 residents, city health officials find that 32 test positive for the virus. a) In a random sample of 200 residents city health officials find that 32 test positive for the virus. Construct and...
You are studying the source of a new virus that has recently infected humans. You suspect...
You are studying the source of a new virus that has recently infected humans. You suspect that the virus was transferred from oter primates (they exhibit a similar infection), specifically chimpanzees, gorillas, or orangutans. You sample blood from several infected humans and sequence some viral genes. You then build a phylogenetic tree with the human sequences and all the known strains from each primate. Draw a hypothetical phylogenetic tree that would suggest that the virus came from gorillas, and this...
The Corona virus outbreak has had a significant impact on all of our lives over the...
The Corona virus outbreak has had a significant impact on all of our lives over the last two months and we know that some of these effects are going to linger for some time. So, I want you to get creative and tell me about the economic impact in life.   Work in some economic terminology into your account. You can talk about prices and wages, unemployment, opportunity costs, diminishing marginal returns, savings, health care, increased demand for amazon or netflix...
The outbreak and spread of COVID-19 virus has had effects beyond the health issues. Discuss how...
The outbreak and spread of COVID-19 virus has had effects beyond the health issues. Discuss how Covid-19 has or can have an impact on the U.S. or global or any country's economic conditions. Assume that you are thinking to pursue your enterprise venture in 2020, what are the effects of this virus on your plan. Of what economic indicators do you expect to resume your venture.
Recently the United States has renegotiated several trade deals before the outbreak of the Coronavirus. Then,...
Recently the United States has renegotiated several trade deals before the outbreak of the Coronavirus. Then, as countries have isolated themselves, international trade has suffered. Analyze the repercussions from the virus with policy papers or books from economic think tanks. Identify possible unintended consequences using supply-and-demand graphs, comparative advantage determining trades, and elasticity.
Recently the United States has renegotiated several trade deals before the outbreak of the Coronavirus. Then,...
Recently the United States has renegotiated several trade deals before the outbreak of the Coronavirus. Then, as countries have isolated themselves, international trade has suffered. Analyze the specific trade deals with policy papers or books from economic think tanks. Identify possible unintended consequences using supply-and-demand graphs, comparative advantage determining trades, and elasticity.
How globalization has affected the spread of Corona virus outbreak? What roles have international economic organizations...
How globalization has affected the spread of Corona virus outbreak? What roles have international economic organizations played in recovering and helping the economies of the affected countries? •   Hint: Build your essay structure on the topics we discussed in the lectures (arguments against/in favor of globalization, types of globalization –cultural globalization, political globalization, environmental aspects of globalization, migration etc., the aims of international economic organizations, how these organizations use their resources/budget –providing loans, sharing information, improving infrastructure etc.)
In light of the ongoing Covid-19 outbreak, the government has recently imposed the Conditional Movement Control...
In light of the ongoing Covid-19 outbreak, the government has recently imposed the Conditional Movement Control Order (CMCO), which prevents from a gathering of people and limits human physical contact only for doing the necessities, therefore no physical face-to-face classes can be held at Circle College. As there is no information about when these restrictions will be lifted, you are concern about the sustainability of Circle College in the future. You realize that there is an urgent need for Circle...
There has been an annual 3.1% prevalence of Zika virus in South American countries since 1947....
There has been an annual 3.1% prevalence of Zika virus in South American countries since 1947. Only 1% of all cases resulted in any DALY count (all cases, any year). In 2015, clinicians observed increased microcephaly among children born to women who had been ill from Zika within the last 12 months. A new screening test was developed with more sensitivity to understand the rate ofZika among women ages 20-35 in three South American countries. It can detect Zika in...
Since the USA has just added about 4 Trillion in additional debt to combat the 'virus',...
Since the USA has just added about 4 Trillion in additional debt to combat the 'virus', the National Federal Deficit will be close to 27 Trillion. With the GDP-Gross Domestic Product projected to shrink by as much as 20% in the 2nd quarter-April through June-that could reduce the GDP to around 20 Trillion. A rule of thumb is that the total National Debt should never exceed more than 150% of the GDP to maintain a solid credit rating and to...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT