Descriptive Statistics

Overview

For this week’s assignment you will demonstrate your understanding of sampling distributions and confidence intervals.

Preparation

Before you begin this assignment, complete the following:

· Download the  Week 4 Assignment Worksheet [DOCX].

· Download the  Week_4_Assignment_Data.csv file.

Instructions

Complete and submit the Week 4 Assignment worksheet.

Competencies Measured

By successfully completing this assignment, you will demonstrate your proficiency in the following course competencies and rubric criteria:

· Competency 3: Conduct statistical analyses to address research questions in the social sciences.

· Construct a graph in JASP.

· Compute descriptive statistics in JASP.

· Construct a confidence interval using JASP.

· Competency 4: Determine the generalizability of specific findings based on parameters of the research design.

· Identify the population to which the confidence interval can reasonably generalized.

· Competency 7: Explain the results of statistical analyses in common language.

· Report descriptive statistics and a confidence interval in APA style.

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Week 4 Assignment

For this assignment you will use the Week_04_Assignment_Data.csv file, which can be found on the Week 4 Assignment page in Canvas. This is a hypothetical dataset. Assume that these data were collected from a simple random sample of Capella University learners enrolled in an undergraduate-level psychology program.

The dataset includes the following variables:

· ID : A unique nominal-level identification number assigned to each participant

· Age : Age in years

· Gender_Identity : Gender identity selected by the student

· IPEDS_Race_Ethnicity : Race and ethnicity as defined by the Integrated Postsecondary Education Data System (IPEDS)

Criteria:

· Construct a graph in JASP

· Compute descriptive statistics in JASP

· Construct a confidence interval using JASP

· Identify the population to which the confidence interval can reasonably generalized

· Report descriptive statistics and a confidence interval in APA style

Use JASP to construct a histogram of the Age variable.

[Include a screenshot of your histogram here]

Use JASP to obtain a table containing the following values for the Age variable: sample size, mean, standard deviation, and 95% confidence interval

[Include a screenshot of your output table here]

Describe the population to which this confidence interval can be generalized.

Compose a formal paragraph in APA style summarizing your analyses. This should include the sample size, mean, standard deviation, and the 95% confidence interval along with its interpretation.

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