(Solved) MATH225 : Week 7 Assignment Lab

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Steps to Complete the Week 7 Lab

Step 1: Find these articles in the Chamberlain Library. Once you click each link, you will be logged into the Library and then click on “PDF Full Text”.

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), discuss your method of collection for the values that you are using in your study. What are some faults with this type of data collection? What other type of data collection could you have used, and how might this have affected your study?

Step 4: Now use the Week 6 Spreadsheet (Links to an external site.) to help you with calculations for the following questions/statements.

  1. Give a point estimate for the average height of all people at the place where you work. Start by putting the ten heights you are working with into the blue Data column of the spreadsheet. What is your point estimate, and what does this mean?step3a - (Answer) MATH225N Week 7 Assignment: Lab - Confidence Interval
  2. Find a 95% confidence interval for the true mean height of all the people at your place of work. What is the interval?w7 - (Answer) MATH225N Week 7 Assignment: Lab - Confidence Interval
  3. Give a practical interpretation of the interval you found in part b, and explain carefully what the output means. (For example, you might say, “I am 95% confident that the true mean height of all of the people in my company is between 64 inches and 68 inches”).
  4. Post a screenshot of your work from the t value Confidence Interval for µ from the Confidence Interval tab on the Week 6 Excel spreadsheet

Step 5: Now, find a 99% confidence interval for the same data. Would the margin of error be larger or smaller for the 99% CI? Explain your reasoning.

Step 6: Save the Week 7 Lab document with your answers and include your name in the title.

Step 7: Submit the document.


Data collection and pitfalls range

The data collection method that I used in collecting the heights of the ten different people can be said to be direct measurement. I measured their heights using a tape measure. Some of the faults characterize this method of data collection is that it usually takes quite a significant amount of time and is not very convenient as random people might not be willing to stand up and have their heights measured………………….

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