Statistics

ST3001 Assessment Instructions

 

Review the details of your assessment including the rubric. You will have the ability to submit the assessment once you submit your required pre-assessment and engage with your Faculty Subject Matter Expert (SME) in a substantive way about the competency.

Overview

Access the following to complete this Assessment:

• ST3001 Rubric
• ST3001 Assessment Template

For this Performance Task, you will analyze an article abstract to determine basic study characteristics, compute multiple descriptive statistics using a set of data, create graphical representations of the data, and draw conclusions using these computations and graphs.

Instructions

To complete this Assessment, do the following:

• Be sure to adhere to the indicated assignment length.

Before submitting your Assessment, carefully review the rubric. This is the same rubric the SME will use to evaluate your submission and it provides detailed criteria describing how to achieve or master the Competency. Many students find that understanding the requirements of the Assessment and the rubric criteria help them direct their focus and use their time most productively.

Important Information on Interpreting the Assessment Rubric (click to expand)

Achievement vs. Mastery of the Competency

• Mastery of this Competency means that 80% or more of the rows have been assessed as Exceeds Expectations and no rows have been assessed as Does Not Meet Expectations.
• Achievement of this Competency means that all rows are assessed at Meets Expectations or above (but lower than the 80% threshold required for Mastery).

Assessment of Individual Rubric Rows

In order to achieve Meets Expectations for a particular row of the rubric, you must have adequately completed all criteria in that row. This means that you have addressed all required elements to the required level of quantity and/or quality.

In order to achieve Exceeds Expectations for a particular row of the rubric, you must have adequately completed all criteria in the row, and in addition, your response must reflect a depth and breadth of knowledge and expertise. Examples of this include—but are not limited to—the following:

• You provide additional, specific, and/or particularly relevant examples to illustrate points made.
• You seamlessly incorporate your original thoughts and diverse, credible, and relevant academic sources, when applicable, to express your viewpoint or develop a persuasive argument.
• You demonstrate a deeper understanding of the subject that draws from discipline-specific knowledge and theory and incorporates the viewpoints of a diverse set of business and management thought leaders.
• You draw additional connections between multiple, complex topics to support your explanations.
• You are able to apply your knowledge in unique, creative, and/or innovative ways.
• You thoroughly break down concepts into simpler parts and use your understanding of business to make connections.
• Your analysis is insightful and original.
• You design processes, products, and/or solutions that are creative, high-quality, and innovative.
• You consider diverse perspectives and relevant social, ethical, and business-related issues when proposing new ideas or formulating judgments.

Rubric

All submissions must follow the conventions of scholarly writing. Properly formatted APA citations and references must be provided where appropriate. Submissions that do not meet these expectations will be returned without scoring.

Your response to this Performance Task should reflect the criteria provided in the rubric and adhere to the required length.

This Assessment requires submission of two files: a completed report, including all computations, graphs, and explanations, and your Excel data set. Save your files as follows:

• Save the report as ST3001_firstinitial_lastname (e.g., ST3001_J_Smith).

The second file should be your Excel file where all computations are completed for the Assessment.

• Save the data set as STData_firstinitial_lastname (e.g., STData_J_Smith).

When you are ready to upload your completed Assessment, select Submit Attempt.

You may submit a draft of your assignment to the Turnitin Draft Check area to check for authenticity. When you are ready to upload your completed Assessment, use the Assessment tab on the top navigation menu. 

Important Note: As a student taking this Competency, you agree that you may be required to submit your Assessment for textual similarity review to Turnitin.com for the detection of plagiarism. All submitted Assessment materials will be included as source documents in the Turnitin.com reference database solely for the purpose of detecting plagiarism of such materials. Use of the Turnitin.com service is subject to the Usage Policy posted on the Turnitin.com site.

Click each of the items below for more information on this Assessment.

Part 1 

Choose one article from the list below:

Kelley, E. S., & Bueno, R. (2022). Explicit word learning in preschoolers from families with high or low maternal education. Communication Disorders Quarterly, 43(4), 246–260. https://doi.org/10.1177/15257401211043757

Leighton, K., Kardong-Edgren, S., Schneidereith, T., Foisy-Doll, C., & Wuestney, K. A. (2021). Meeting undergraduate nursing students’ clinical needs: A comparison of traditional clinical, face-to-face simulation, and screen-based simulation learning environments. Nurse Educator, 46(6), 349–354. https://doi.org/10.1097/NNE.0000000000001064

Perming, C., Thurn, Å., Garmy, P., & Einberg, E.-L. (2022). Adolescents’ experience of stress: A focus group interview study with 16-19-year-old students during the COVID-19 pandemic. International Journal of Environmental Research and Public Health, 19(15). https://doi.org/10.3390/ijerph19159114

Sabella, K. (2021). Factors that hinder or facilitate the continuous pursuit of education, training, and employment among young adults with serious mental health conditions. Psychiatric Rehabilitation Journal, 44(4), 373–380. https://doi.org/10.1037/prj0000470

Simola, S. K. (2019). Educating business students to manage for mental health. Journal of Mental Health Training, Education & Practice, 14(5), 315–326. https://doi.org/10.1108/JMHTEP-01-2019-0005

Svensson, C., Lomander, H., & Kokko, S. (2022). Veterinary herd health management—Experiences and perceptions among Swedish dairy cattle veterinarians. Journal of Dairy Science, 105(8), 6820–6832. https://doi.org/10.3168/jds.2021-21184

All articles are available in full text in the Walden Library. You may also read the abstract for each by copying and pasting the full DOI address into a web browser. Read the abstract for your chosen article, and then answer the questions that follow. Be sure to provide an explanation for each of your answers and include supporting evidence from the text and/or Learning Resources.

1. In your own words, briefly describe the study and what it covered as if explaining it to someone who has not read the abstract information.
2. What sample was used in the study? Explain your answer and provide supporting evidence from the textbook or other resources.
3. What population does this sample best represent? Explain your answer and provide supporting evidence from the textbook or other resources.
4. Identify at least one variable examined in this study. Classify this variable as quantitative or qualitative. Explain your answer and provide supporting evidence from the textbook or other resources.
5. Explain the level of measure for the variable identified in Section 4. Explain your answer and provide supporting evidence from the textbook or other resources.
6. Determine if the study is overall a quantitative or qualitative study. Justify your reasoning using at least two key aspects for the type of study you chose. Explain your answer and provide supporting evidence from the textbook or other resources. 

Part 2

To prepare for this part:

1. Go to your welcome message from your SME in which you were assigned a random number greater than 50.
2. Download the original Excel file titled BODY DATA.
3. Start a new Excel file. Copy/paste all column names from the original document.
4. Using the random number provided from your SME, go to that row of the BODY DATA file.
5. Copy and paste the number of rows of data equal to your number, including all columns, into your new Excel file.
6. Save this data set as STData_firstinitial_lastname (e.g., STData_J_Smith).
7. Create two new columns: one labeled BMI Smokers and one labeled BMI Nonsmokers.
8. Sort the data by smoking status and copy paste all BMI data for smokers into the appropriate column and all BMI data for nonsmokers in the appropriate column.

The Creating a data set video will walk you through the process of making your own data set.

Data set adapted from:

Triola, M. F. (2022). Elementary statistics using Excel (7th ed.). Boston, MA: Pearson.

• Appendix B, “Data Sets,” Data Set 1: Body Data (pg. 796)

Creating graphical display of data

Your newly created data set will be used to compare the BMI of smokers to non-smokers. Create the following graphs in Excel:

1. Using the column labeled Smoker (not sorted by smoking status), create an appropriate graphical display to clearly show the breakdown of smokers and nonsmokers in your data set.
2. Copy and paste your graph from Excel here. Write a one-sentence interpretation of what the graph displays.
3. Create a histogram for the column labeled BMI (not broken down by smoking status). Use a bin width of 2. Start the bins at your minimum data point as appropriate for your data set. Write a one-sentence interpretation of what the graph displays.
4. Create two modified box plots for BMI, one for smokers one for nonsmokers. Write a one-sentence interpretation of what the graph displays.

Descriptive statistics

Use the data analysis tool pack to create two tables of descriptive statistics, one for smokers and one for nonsmokers, using the columns created in Step 7 in the preparation portion.

Use these statistics to answer the following questions comparing smokers to nonsmokers. Be sure to provide values from your Excel output to support your reasoning.

1. Which group has an BMI that is typically higher? Be sure to write at least one sentence justifying your reasoning including values from the excel output.
2. Which group has greater variation in their BMI? Be sure to write at least one sentence justifying your reasoning including values from the excel output.
3. Do you suspect any outliers are present in the BMI for each group? Be sure to justify your reasoning.