Evaluate some background research on the various methods of Chi-square testing. Then discuss in scholarly detail using examples researched or based on life experiences where Chi-square testing is appropriate and not appropriate to use for data analysis techniques.
Evaluate some background research on the various methods of Chi-square testing. Then discuss in scholarly detail...
Discuss the five steps in hypothesis testing, citing examples where necessary. Define null and research hypotheses. Explain how to prepare data for hypothesis testing. Describe exploratory data analysis as a prelude to hypothesis testing. Distinguish between Type I and II errors. What are the implications of each?
Before writing a research paper you should write The Methods. The methods is one of the briefest sections of a research paper. In the methods, you need to explain how and why you gathered and analyzed data in enough detail that the reader could easily replicate your study. At this stage, you are only proposing how you will do this but note that after you collect data (perform the methods), you will revise this section into past tense to reflect...
The purpose of this activity is to gain experience conducting a chi-square test of independence using technology. Recall the report On the Front Line: The Work of First Responders in a Post-9/11 World. We will use data from this report to investigate the question: Are alcohol-related problems among New York firefighters associated with participation in the 9/11 rescue? Here again are our observed data: No Risk for Alcohol Problems Moderate to Severe Risk for alcohol problems Participated in 911 rescue...
Please use the Internet to research at least ONE professional or scholarly article that shows how different wavelengths of the electromagnetic spectrum are applied in real life. Some key words you might consider using for your search are: Ultraviolet light Infrared light X-Rays Radio frequencies and Microwave Please include the following in your initial post: Provide a brief summary of your research. Discuss any practical considerations that might arise from this application of the concept. Your summary must be in...
Although the sample sizes are not large for some of the examples below, you can use chi-square ap- proximations to calculate p-values for the likelihood ratio tests. 3. Two drugs are compared to see which of them is more likely to produce unpleasant side effects. Each of 100 subjects is given the two drugs on different occasions. The results are tabulated below Nausea with drug B 38 10 No nausea with B Nausea with drug A No nausea with A...
Quantitative Methods and Analysis Course One of the items that businesses would like to be able to test is whether or not a change they make to their procedures is effective. Remember that when you create a hypothesis and then test it, you have to take into consideration that some variance between what you expect and what you collect as actual data is because of random chance. However, if the difference between what you expect and what you collect is...
Research is an integral part of all professional fields. Designing a research study can be a complicated task that can be simplified if the appropriate techniques can be identified. This assignment will give you the opportunity to design an experiment, including finding relevant prior research, determining the appropriate sample, data analysis techniques, and discuss the results you hope to see. Working from the topic chosen earlier in the topic selection, you will be designing your own statistical study. In a...
1. List some of the various communities to which you belong (organizations, work, hobbies, fields of expertise, family). Give examples of some of the behavioral and language characteristics particular to each group? For instance, do you speak to your job supervisor in the same way you speak to your child or your best friend? Why might you interact with members of different communities differently? 2.What are some of your past experiences with writing? Please explain what you like and...
Problem Set 1: Chi Square Test of Goodness of Fit Research Scenario: A political psychologist is curious about the effects of a town hall meeting on people’s intentions to support a state proposition that would legalize gambling. He interviews people as they leave and asks them whether their opinion about the proposition has changed as a result of the meeting. He records these frequencies in the table below. Using this table, enter the data into a new SPSS data file...