sickle cell anemia is a hereditary medical condition affecting red blood cells that are thought to protect against malaria, a debilitating parasitic infection of the liver and blood. that would explain why the sickle cell traits found in people who originally came from Africa, where malaria is widespread, a study in Africa tested 543 children for the sickle cell also for malaria infection in all 25% of the children had sickle cell and 6.6% of the children had both sickle cell and malaria. overall 34.6% of the children had malaria

Make a Venn diagram with the information provided. use it to answer the following questions

a) what is the probability that a child has either malaria or sickle cell?

b) what is the probability that a child has neither malaria or sickle cell, round to 3 decimal places

c) what is the probability that a child has malaria given that the child has the sickle cell trait

d) what is the probability that a child has malaria given that child does not have the sickle cell trait

e) Are the events sickle cell trait and malaria independent? what might that tell you about the relationship between sickle cell and malaria

B: According US News, about 28% of Americans claim that they do not get enough sleep. Gallup feels that 28% is a low value so they conducted a poll that found that 30% of a random sample of 801 Americans responded that they do not get enough sleep. Perform an appropriate hypothesis test using α=0.05. Be sure to include the following:

1. State the null and alternative hypotheses in symbols and words. Assume conditions have been met. (2 pts.)
2. Perform your hypothesis test "by hand" using the equation editor. Be sure to use the appropriate probability notation. Don't write your conclusion in this step.(4 pts.)
3. Construct a 90% confidence interval, again showing calculations "by hand". Don't write your conclusion in this step. (4 pts.)
4. State your conclusion making sure to site whether we reject or fail to reject and what that means in context based on the p-value. Then support your conclusion with the results from your confidence interval. Be sure to note whether the hypothesized value falls in our interval and what that means. (3 pts.)

The Environmental Protection Department (EDP) of Hong Kong Government would like to promote consumer conservation behaviors in the local catering industry. You are asked to conduct a marketing research to inform the EDP on the possible strategies it can adopt to reduce the use of plastic straws among consumers.

a) Suggest TWO appropriate types of research design that the EDP may employ. Justify your answers.

b) You are asked to design a questionnaire for assessing consumers’ willingness to reduce the use of plastic straws. Please propose THREE possible independent variables that may predict the dependent variable (i.e., willingness to reduce the use of plastic straws). For EACH independent variable, explain why you think it can influence the dependent variable, and write a measurement scale to measure it.

c) Propose THREE solutions to increase the generalizability of the findings of your proposed research. Explain each solution in detail.

d) Illustrate with THREE examples how an ethical researcher could exercise good practices in collecting data from respondents.

Ban the Box’ (BTB) is the policy that is intended to encourage ex-inmates to participate in the labor force. The policy got its name through banning the question on whether a job applicant has criminal histories from the job application form. Under the BTB policy, employers would be no longer able to weed out applicants who have criminal histories in early stage of hiring process. When the state government of NJ announced that it will implement the BTB policy for both public and private firms, many economists in NJ were worried about if the policy hurts unintended group of people rather than improving employment opportunity of ex-criminals.

Which group do you think might be negatively affected by the BTB policy? And why are economists worried about the adverse effect of BTB policies? Explain your answer carefully and in your answer, be sure to talk about what type of discrimination plays a role in generating such negative effect.

Do attractive nuisance cover any contractor under any type of insurance,. If so, what is and why is it // Please explain in detail

How does Jackson's handling of the Native Americans fit into his own perception of what it means to be the President?

Explain in Detail and with Evidence

What is the International Situational Audit (Human Resource) facing by Air Asia? Please explain in more detail in at least 3 areas

Why the threat of new entrants on Air Asia is low? What are the factors? Please provide 3 factors and explain in more detail.

What does a positive and negative direct material quantity variance mean ? Explain in detail and go beyond favourable and unfavourable variance.