Lab

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Required Resources

Read/review the following resources for this activity:

  • OpenStax Textbook: Chapter 8
  • Lesson

Scenario/Summary

The highlight of this week’s lab is confidence intervals and the use of these intervals in the health sciences. There is a short reading that specifically relates confidence intervals to health sciences and then you are asked to demonstrate your knowledge of confidence intervals by applying them in a practical manner.

Deliverables

The deliverable is a Word document with your answers to the questions posed below based on the article you find.

Required Software

  • Microsoft Word
  • Internet access to read articles

Week7 lecture note

Demonstrate

Steps to Complete the Week 7 Lab

Step 1: 

  • First Article: confidence intervals, part 1

Authors El-Masri, Maher M. -ASSOCIATE PROFESSOR AND RESEARCH LEADERSHIP CHAIR, FACULTY OF NURSING, UNIVERSITY OF WINDSOR, WINDSOR, ONT-

  • Second Article: confidence intervals, part 2 

Authors El-Masri, Maher M. -Associate professor and research leadership chair, Faculty of nursing, University of Windsor, Windsor, Ont

  • Step 2: Consider the use of confidence intervals in health sciences with these articles as inspiration and insights.

Step 3: Using the data you collected for the Week 5 Lab (heights of 10 different people that you work with plus the 10 heights provided by your instructor), discuss your method of collection for the values that you are using in your study (systematic, convenience, cluster, stratified, simple random). What are some faults with this type of data collection? What other types of data collection could you have used, and how might this have affected your study?

Step 4: Now use the Week 6 Spreadsheet to help you with calculations for the following questions/statements.

a) Give a point estimate (mean) for the average height of all people at the place where you work. Start by putting the 20 heights you are working with into the blue Data column of the spreadsheet. What is your point estimate, and what does this mean?

b) Find a 95% confidence interval for the true mean height of all the people at your place of work. What      is the interval? [see screenshot below]

c) Give a practical interpretation of the interval you found in part b

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