Week 7 Assignment Lab

Name: ___________________ Instructor: __________________ Date: _______

Lab 7 Template

1. Write a paragraph summarizing what you learned from the articles provided. Consider the use of confidence intervals in health sciences with these articles as inspiration and insights.

Data Collection

Use the data set you collected for the Week 5 lab (heights of 10 different people plus the 10 heights provided by your instructor). ( NOTE: This is NOT the data used in the lab video, which is about midterm grades. Do not use the midterm grades data.)

You will need your Week 5 Lab Data!!

2. Download the Week 6

3a. Provide a screenshot of your Week 5 Data (20 Heights)

3b. Summarize the Preliminary Calculations:

Mean: ______ Your Height: _________Standard Deviation: _______

Write at least one paragraph to answer each of the following questions:

3c. Discuss your method of collection for the values that you are using in your study (systematic, convenience, cluster, stratified, simple random).

3d. What are some faults with this type of data collection?

3e. What other types of data collection could you have used, and how might this have affected your study?

Calculations

4. Find a 95% confidence interval for the true mean of heights. What is the interval? [Provide a Screenshot].

5. Give a practical interpretation of the 95% confidence interval [ Write a complete sentence].

6. Find a 99% confidence interval for the true mean heights. What is the interval? [Provide a Screenshot].

7. Give a practical interpretation of the 99% confidence interval [ Write a complete sentence].

Compare Margins of Error

8a. Would the margin of error be larger or smaller for the 99% CI? Explain your reasoning.

8b. As the confidence level increases, what happens to the Margin of Error?