course materials

1. Which vaccine is more effective for preventing getting the flu
Which vaccine is more effective for preventing getting the fluWhich vaccine is more
effective for preventing getting the fluThe purpose of the Final Exam is to assess your
understanding of the main statistical concepts covered in this course and to evaluate your
ability to critically review a quantitative research article. The exam will consist of two parts:
Part I includes three essay questions and Part II includes a research critique. All of your
responses should be included in a single Word document for submission.Please include the
following general headings for each section of the written exam within your Word
document:Part I: Essay QuestionsEssay 1Essay 2Essay 3Part II: Research Study
CritiqueIntroductionMethodsResultsDiscussionYour complete Word document must
include a title page with the following:Student’s nameCourse name and numberInstructor’s
nameDate submittedPart I: Essay QuestionsThere are three essay questions in this section.
You must answer all three questions. The length of each essay should be one to two double-
spaced pages (excluding title and reference pages). Use 12-point font and format your paper
with regular 1-inch margins. Do not include the essay prompt in your document. It will not
count toward the length requirement for your essays. Which vaccine is more effective for
preventing getting the fluEssay 1A group of researchers conducted an experiment to
determine which vaccine is more effective for preventing getting the flu. They tested two
different types of vaccines: a shot and a nasal spray. To test the effectiveness, 1000
participants were randomly selected with 500 people getting the shot and 500 the nasal
spray. Of the 500 people were treated with the shot, 80 developed the flu and 420 did not.
Of the people who were treated with the nasal spray, 120 people developed the flu and 380
did not. The level of significance was set at .05. The proportion of people who were treated
with the shot who developed the flu = .16, and the proportion of the people who were
treated with the nasal spray was .24. The calculated p value = .0008.For this essay, describe
the statistical approaches (e.g., identify the hypotheses and research methods) used in this
excerpt from a research study. Interpret the statistical results and examine the limitations
of the statistical methods. Finally, evaluate the research study as a whole and apply what
you have learned about hypothesis testing and inferential statistics by discussing how you
might conduct a follow-up study.Your essay must address the following points:Describe the
research question for this experiment.What were the null and alternative hypotheses?Were
the results of this test statistically significant?If so, why were they significant?Would the
researchers reject or fail to reject the null hypothesis?Do the results provide sufficient
evidence to the alternative hypothesis?Was the sample appropriate for this study? Explain

2. your answer.What are some possible limitations to this study?Discuss how you would
conduct a follow up study to this one. Explain your answer.Describe the difference between
practical and statistical significance.Essay 2A researcher has investigated the relationship
between IQ and grade point average (GPA) and found the correlation to be .75.For this
essay, critique the results and interpretation of a correlational study.Evaluate the
correlational result and identify the strength of the correlation.Examine the assumptions
and limitations of the possible connection between the researcher’s chosen
variables.Identify and describe other statistical tests that could be used to study this
relationship.Your essay response must address the following questions:How strong is this
correlation?Is this a positive or negative correlation?What does this correlation mean?Does
this correlation imply that individuals with high Intelligence Quotients (IQ) have high Grade
Point Averages (GPA)?Does this correlation provide evidence that high IQ causes GPA to go
higher?ORDER NOW FOR CUSTOMIZED, PLAGIARISM-FREE PAPERS