Even complicated and confusing topics will be easily developed and covered if you request our help writing an essay. Place an order today!

Question 1: 100 smokers are enrolled in a study to test the efficacy of a smoking-cessation drug. All participants are given the drug. The researchers contact the subjects at 3 months, 6 months, and 12 months; at each of those 3 intervals, the subjects are classified as either Smoking or Not Smoking. What statistical test should the researchers use to determine if there is a difference in the proportion of Smoking vs. Not Smoking at those 3 intervals? Explain your choice.


Question 2: How do you determine the degrees of freedom for Spearman’s rank order correlation?

Question 3:

What is the benefit of performing the Cochran’s Q test rather than examining frequency tables and performing McNemar testing alone?

Question 4:

What is the difference in interpretation of Pearson’s correlation and the coefficient of determination?

Question 5:

If you perform a Pearson correlation on multiple different continuous variables, do you have to run a Bonferroni correction on the corresponding p-values? Explain your reasoning.

Question 6:

Definition of Dichotomous data and 2 examples



Question 7:

McNemar test is:
a) The chi-square test of association for paired data
b) The Chi-squared test of association for ordinal data
C) The two way T-test for paired data


Question 8:

Why is that outliers are not acceptable in Pearson Correlation test? And if they are how we can correct them?


Question 9:

Depending on the fact that  McNemar test and paired t-test are used to determine if there is differences in the  distribution between 2 related group, how can we decide which test to use?


Question 9:

What are the major assumptions that we need to check before running Pearson correlation?


Question 10:

When we should use Bonferroni adjustment of the critical alpha level?


Question 11:

What does pearson co-efficient measure? What is th range of pearson’s co-efficient?

Question 12:

A researcher attempts to understand if there is a linear relationship between two paired variables? What co-efficient should he use to do this?

Question 13:

A pharmaceutical researcher tries to understand the effects of two drugs and if the combination of the two drugs has a better effect than a single drug. The outcome of the drug use cannot be understood using a continuous variable so he decides to use as categorical variable. What non-parametric statistical analysis test should he use to carry out these analysis?

Question 14:

Let’s pretend. You are working on your final project and you realized you have to do non-parametric tests. Thinking of your final project for this class choose from these four test (Spearman’s Rank Order, Cochran’s IQ, McNemar’s Test and Pearson’s Correlation) which test would best represent your final project and data? Why did you choose this test? What is the null hypothesis? Does it meet the assumption? Will you have linearity or monotonicity? Outliers? Normality? And Why?

Question 15:

When testing for monotonicity, which test do you use when the scatterplot is in a linear direction? Which test do you use for a non-linear direction? Explain why?

Question 16:

Comparing Pearson’s Correlation and Spearman’s R, which tests is stronger and powerful?  Explain why?

Q17.  In the Pearson Correlation, what does an r value of -1 indicate?

Q18.  True or false – in a Pearson Correlation between two variables, an r value of 1 indicates that one variable is causative of the variance in the other

Q19.  A study is done with 100 participants to investigate the relationship between age and gender on alcohol consumption.  Subjects recorded the number of drinks they consumed each week for 6 weeks.  Subjects were categorized by gender and whether they were younger or older than 40 years of age.  True or False — the McNemar Test is appropriate for determining whether there is a significant association between males and females under and over 40 and alcohol consumption.  Why?

"Get 15%discount on your first 3 orderswith us"
Use the following coupon

testimonials icon
Running head: BLOOD STAIN ANALYSIS1Blood Stain AnalysisNAMEDATEINSTITUTIONRunning head: BLOOD STAIN ANALYSIS2There three categories of impact blood s...
testimonials icon
Why is it important for the client to collaborate in the creation of the treatment plan? Who owns the treatment plan? What if your goals ar...
testimonials icon
write 1 paragraph about Car accidents due to mobile use 1- Describe the problem 2- Effects of the problem 3- Wh...
testimonials icon
I need the ‘choice of topic’ and ‘list of sources’ by today. Try not to use a lot of complicated vocabulary because these is an on going...
testimonials icon
Need help with homework. This is due on Sunday September 27, 2015 at 2pm central time zone. All the information needed is attached. ...
testimonials icon
Positive psychology is more applicable to performance appraisal processes or thetraining and development.Psychology refers to the learning of the ind...
testimonials icon
1.      1.  How do you perform as a leader under stress? Do you like stress or try to avoid it? Explain your answer using your own pe...
testimonials icon
Read the case study, “Robin Hood” in Part Two of your textbook and discuss the following questions with your class....
testimonials icon
2 reference1.Describe the importance of evidence-based nursing care,2.Idendify barriers to the implementation of evidence based-nursi...
Calculate Price

When you use PaperHelp, you save one valuable — TIME

You can spend it for more important things than paper writing.

Approx. price
Order a paper. Study better. Sleep tight. Calculate Price!
Created with Sketch.
Calculate Price
Approx. price