MATH 225 Week 7 Lab Assignment; Exploring Confidence Intervals

MATH225 Week 7 Lab Assignment Name: Instructor Name: Please use this template to help answer the questions listed in the lab instructions. The “steps” below refer to the steps listed in the lab instructions. Type your answers and post your screenshots in the spaces given. Summary of Articles Write a few complete sentences summarizing what you learned from the articles provided. Summary of Article #1 – Confidence Interval 1 Confidence intervals are frequently used to provide the range for population mean and percentage values. The confidence levels used are 95%, 90%, 98%, and 99%. Summary of Article #2 – Confidence Interval 2 Article 2 explains that researchers are able to find the confidence interval of two studies and their separate means. How do you think confidence intervals can be used in health sciences? Use the articles to inspire and support your answer. 68580017701281 01 Condfidence intervals can be used in health sciences in research of different medication success rates, clinical decison making, and comparing treatment groups. 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.) Instructor Provided 62 62 62 63 65 67 68 69 69 73 My own 59 62 62 65 67 69 69 71 71 72 For the remainder of this lab, treat the 20 numbers as ONE sample. Provide a screenshot of your Week 5 Data (20 Heights) from the Week 6 Spreadsheet Sample Mean and Standard Deviation tab (be sure that your mean, standard deviation, and all 20 data values from the spreadsheet are visible). 685800127417 6858009128662 2 Summarize the Preliminary Calculations (Round to 2 decimal places): Sample Mean: 66.35 Standard Deviation: 4.06 Your Height: 59 Please answer the following questions in complete sentences: Discuss your method of collection for the values that you are using in your study (systematic, convenience, cluster, stratified, simple random). How did you determine the method you selected was the method used? I chose my participants out of convenience. I used the people I see on an everyday basis and asked them for their heights. What are some faults with this type of data collection? Some faults in my chosen type of collection is that it does not represent