How was the sample size chosen for this study and was it appropriate? How was the chi-square test used? What groups and variables were evaluated?

Application: Chi-square Tests for Three or More Groups The chi-square test is a popular test used in medical statistics. It can be used for comparing proportions among three or more groups, even when there are multiple levels within each group. It can also be used to test quantitative data when the numeric values are grouped into categories. To prepare for this Application Assignment, review the article by Anderson and Arvidson (2017) Childhood vaccine status and correlation with common nonvaccine-preventable illnesses. To complete this Application Assignment, write a 2- to 3-page paper that describes the research study with a focus on use of the chi-square test. Be sure to address the following: Report the results and interpret the meaning of the chi-square test findings. Address if this was this an appropriate test to use for this study. Include an APA formatted reference and citations for this article. Submit your Application Assignment by Day 7. Your written assignments must follow APA guidelines. Be sure to support your work with specific citations from this weeks Learning Resources and additional scholarly sources as appropriate. Refer to the Essential Guide to APA Style for Walden Students to ensure that your in-text citations and reference list are correct.

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