PSY 315 Week 1 Practice Problem Worksheet (Version 7)
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Provide a response to the following questions. Written responses should be at least 30 to 45 words each.
1. Explain and provide an example for each of the following types of variables:
a. Nominal:
b. Ordinal:
c. Interval:
d. Ratio scale:
e. Continuous:
f. Discrete:
g. Quantitative:
h. Qualitative:
2. The following are the speeds of 40 cars clocked by radar on a particular road in a 35 milesperhour zone on an afternoon:
30, 36, 42, 36, 30, 52, 36, 34, 36, 33, 30, 32, 35, 32, 37, 34, 36, 31, 35, 20
24, 46, 23, 31, 32, 45, 34, 37, 28, 40, 34, 38, 40, 52, 31, 33, 15, 27, 36, 40
Create a frequency table and a histogram. Then, describe the general shape of the distribution.
3. Raskauskas and Stoltz (2007) asked a group of 84 adolescents about their involvement in traditional and electronic bullying. The researchers defined electronic bullying as “…a means of bullying in which peers use electronics (such as text messages, emails, and defaming Web sites) to taunt, threaten, harass, and/or intimidate a peer” (p. 565). The table below is a frequency table showing the adolescents’ reported incidence of being victims or perpetrators of traditional and electronic bullying.
a. Using the table below as an example, explain the idea of a frequency table to a person who has never taken a course in statistics.
b. Explain the general meaning of the pattern of results.
4. Describe whether each of the following data words best describes descriptive statistics or inferential statistics. Explain your reasoning.
a. Describe:
b. Infer:
c. Summarize:
5. Compare the three types of research methods and statistics.
6. Regarding gun ownership in the United States, data from Gallup polls over a 40year period show how gun ownership in the United States has changed. The results are described below, with the percentage of Americans who own guns given in each of the 5 decades.
a. Are the percentages reported above an example of descriptive statistics or inferential statistics? Why?
b. Based on the table, how would you describe the changes in gun ownership in the United States over the 40 years shown?
7. Refer to the SimpsonSouthward et al. (2016) article from this week’s electronic readings. Was this an example of inferential statistics and research or descriptive statistics and research? Justify your response.
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If anxiety and depression are correlated, what three possible directions of causality might explain this correlation?
..

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What is a correlation? What are the different types of correlation research? Why is it important to determine correlation? How is the strength of a correlation determined?
..

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1. Learning Team Assignment: Hypothesis Testing Paper
Resources: Assigned readings, ERRs, the Internet, and other sources
Select a research issue, problem, or opportunity in the field of psychology.
Obtain instructor appro..

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What is the theory underlying the ANOVA? Why is it important? What are the differences between a two sample ttest and ANOVA hypothesis testing? What is an example of a research idea that would need to be analyzed using an ANOVA?
..

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What is a tTest? How is the tTest different from what we learned last week? What is the normal distribution and how does it relate to the ttest? What is an example of a situation in which you would use a t Test for dependent means?
..

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What is the difference between null and alternative hypotheses statements in onetailed and twotailed tests? What are significance/alpha levels and how does using a one versus a two tailed test affect significance levels?
..

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What are some terms related to hypothesis testing with which you are already familiar? What are the five steps of hypothesis testing? Why do the null and alternative hypotheses have to be mutually exclusive?
..

PSY 315 Week 2 Learning team assignment Descriptive and Inferential Statistics Paper andTeam Charter
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1. Learning Team Assignment:Descriptive and Inferential Statistics Paper & Team Charter: see Rubric in the Course MaterialsForum, Also post the team charter to the Assignments section with the completed assignment.
Resources: Assigned readings, ERR..

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How effective are the pie charts that often accompany a newspaper article in explaining the statistics being used in the article? Can you find an example of a pie chart?
..

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The median home price in your area has increased in the last 10 years, how does this differ from the mean home price in your area? How does this illustrate what the mean and median are?
..

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1. Individual Assignment: Research, Statistics, and Psychology Paper
Resources: Assigned readings, ERRs, the Internet, and other sources
Prepare a 700 to 1,050word paper in which you examine the role of research and statistics in the field of psychology.
..

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What are descriptive statistics, and how might you use descriptive statistics in your personal life?
..

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What are the differences between quantitative and qualitative data? What are some examples of each?
..

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Provide a response to the following questions.
Note: Each team member should compute the following questions and submit them to the Learning Team forum. The team should then discuss each team member’s answers to ascertain the correct answer for each question. Once your team has ans..

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Resource: Instructor approved research issue, problem, or opportunity in the field of psychology
Prepare a 1,400 to 1,750word paper in which you formulate a hypothesis based on your selected research issue, problem, or opportunity.
Address the following:
Describe your selected r..

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Chapter 7
The table below shows ratings of various aspects of work and home life of 100 middleclass men in India who were fathers. Pick three rows of interest to you and explain the results to someone who is familiar with the mean, variance, and Z scores, but knows nothing els..

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Prepare a 7 to 10slide Microsoft PowerPoint Presentation with speaker notes, as a lesson to explain the null and alternative hypothesis and how to use a ztest to test the null hypothesis.
Provide an example to illustrate your lesson.
Include a minimum of 12 peer..

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Resource:Statistics for Psychology
Complete the Week Three Practice Problems Worksheet.
Click the assignment files tab to submit your assignment.
Note. Methods of computation may include the usage of Microsoft® Excel®, SPSS™, Lotus®, SAS®, Minitab®, or byh..

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Resource: Assigned journal article
Create a 7 to 10slide presentation with speaker notes examining the differences between descriptive and inferential statistics used in the journal article you were assigned.
Address the following items as they apply to the article:
Describe the..

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Resource:Statisticsfor Psychology
Complete the Week Two Practice Problems Worksheet.
Click the Assignment Files tab to submit your assignment.
Note. Computation methods may include the use of Microsoft® Excel®, SPSS™, Lotus®, SAS®, Minitab®, or byhand..

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Resource:Statisticsfor Psychology
Complete the Week One Practice Problems Worksheet.
Click the Assignment Files tab to submit your assignment.
Note. Computation methods may include the use of Microsoft® Excel®, SPSS™, Lotus®, SAS®, Minitab®, or byhand..

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Two boats, the Prada (Italy) and the Oracle (USA), are competing for a spot in the upcoming America’s Cup race. They race over a part of the course several times. The sample times in minutes for the Prada were as follows: 12.9, 12.5, 11.0, 13.3, 11.2, 11.4, 11.6, 12.3, 14.2, and 11.3. The sam..

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. On a standard measure of hearing ability, the mean is 300, and the standard deviation is 20. Provide the Z scores for persons whose raw scores are 340, 310, and 260. Provide the raw scores for persons whose Z scores on this test are 2.4, 1.5, and 4.5.
2.&nb..

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Create a 12 to 15slide presentation using the information you gathered and submitted in Weeks 3 & 4. Include the following:
Describe the problem, and provide some brief background about the situation.
Explain the research hypothesis.
Descri..

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Analyze the data from Part 1 using Microsoft® Excel® software.
Write a 700 to 875word paper that includes the following information:
Describe what method you are using to compare groups.
Copy and paste the output into a Microsoft® Word document, and also answe..

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Select one of the following scenarios based on your particular field of interest in psychology:
Industrial/Organizational Psychology:
A few months ago, the upper management at a large corporation decided they wanted to make major changes in the organization. Lea..
