Create a Word document with a title page, use page headers and numbers, level h

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Create a Word document with a title page, use page headers andnumbers, level headings, intext citations, and a reference list, following all APA formatting requirements. Paper 3-4 pages excluding title and reference page.Differentiate between HeaLY and HALE.What are the criteria for establishing a cause-and-effect relationship?Describe how descriptive and analytical epidemiology are used.