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1.Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The primary outcome is peak expiratory flow rate, a continuous variable measured in liters per minute. The primary outcome will be measured after 6 months on treatment. The expected peak expiratory flow rate in adults is 300 with a standard deviation of 50. How many subjects should be enrolled to ensure 80% power to detect a difference of 15 liters per minute with a two sided test and ?=0.05?
2.An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure that a 95% confidence interval estimate for the mean caffeine intake (measured in mg) is within 15 units of the true mean? Assume that the standard deviation in caffeine intake is 68 mg.
Explain the 6 approaches to personality theory, and describe how each approach views aggression or depression.
The punctuated equilibrium model of group development emphasizes the importance of establishing deadlines and milestones.
Briefly describe the types of aggression that are prevalent in the workplace violence. Then, briefly describe the theories that might best explain the types of aggression found in workplace setting, applying the theories to specific examples.
Discuss the ‘distinguishing resources’ that makes Luzerne and its surroundings such a unique destination for tourism.
What is the most widely used illicit drug in the United States? Under what class of drugs is it listed and what are its short-term physical and psychological effects at low to moderate doses?
choose a recent experience in one of three areas of the hospitality industry food service lodging or travel and
Identify and discuss the major issue(s) associated with the topic from the book of Romans, and list four application based principles for life today.
Use two examples to mount an argument whether interaction between religion and science has been positive, negative or combination of both in 17th century.
discussing the implications of copyrights on the usage of content on a Web site.
Review of suggestions to improve the reliability, validity, and therefore, the legality, and usefulness of appraisal ratings are given.
Your task is to write a report about the feasibility of implementing GIS in an everyday business. Your study must focus on the feasibility of developing and implementing a brand new full-blown GIS in a bank (A hypothetical GIS department to conduct l..
you have conducted field research on practice related to the disorder including the interview with a health
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