Question Description
- Discuss the three general purposes for using statistical tests in a quantitative study and identify one statistical test from each group.
-
Mostimportant statistical tests Statistical test Description Fisher’s exact test Suitable for binary data in unpairedsamples: The 2 × 2 table is used to compare treatment effects or thefrequencies of side effects in two treatment groups Chi-square test Similar to Fisher’s exact test(albeit less precise). Can also compare more than two groups or more than twocategories of the outcome variable. Preconditions: sample size ca. >60;expected number in each field 5 McNemar test Preconditions similar to those forFisher’s exact test, but for paired samples Student’s t-test Test for continuous data.Investigates whether the expected values for two groups are the same,assuming that the data are normally distributed. The test can be used forpaired or unpaired groups Analysis of variance Test preconditions as for theunpaired t-test, for comparison of more than two groups. The methods ofanalysis of variance are also used to compare more than two paired groups Wilcoxon’s rank sum test(also known as the unpaired Wilcoxon rank sum test or the Mann–Whitney Utest) Test for ordinal or continuous data.In contrast to Student’s t-test, does not require the data to be normallydistributed. This test too can be used for paired or unpaired data Kruskal–Wallis test Test preconditions as for theunpaired Wilcoxon rank sum test for comparing more than two groups Friedman test Comparison of more than two pairedsamples, at least ordinal scaled data Log rank test Test of survival time analysis tocompare two or more independent groups Pearson correlation test Tests whether two continuous normallydistributed variables exhibit linear correlation - Explain what probability means.
- What does p<.05 mean?
- If the p =.15, what statement would you expect to see in the conclusion section of the research report with regard to the research and statistical hypotheses?
- Briefly explain the value of using confidence intervals in study results. Support your answers with rationale from your text.
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Place Order” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.