APUS CLE : MATH302 B009 Win 20 : Tests & Quizzes

MATH302 B009 Win 20 Tests & Quizzes Tests & Quizzes Week 2 Knowledge Check Homework Practice Questions Return to Assessment List Part 1 of 8 - Measures of the Spread of Data Knowledge Check Homework 2.0/ 3.0 Points Question 1 of 20 1.0/ 1.0 Points Cholesterol levels were collected from patients two days after they had a heart attack (Ryan, Joiner & Ryan, Jr, 1985). Find the standard deviation. See Attached Excel for Data. cholesterol data.xlsx 8 KB • A. 45.76 • B. 47.71 • C. 2195 • D. 46.85 • E. 9.02 • F. 2276.29 Answer Key: B Feedback: use =STDEV.S function in Excel. Question 2 of 20 FTES data.xlsx 8 KB 0.0/ 1.0 Points The population FTES for 2005–2006 through 2010–2011 was given in an updated report. The data are reported here. APUS CLE : MATH302 B009 Win 20 : Tests & Quizzes Page 2 of 15 See Attached Excel for Data. Mean: 1811.0 Calculate the mean. Round to one decimal place. Answer Key: 1810.7 Feedback: use =AVERAGE function in Excel Question 3 of 20 movie data.xlsx 9 KB 1.0 / 1.0 Points Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows: See Attached Excel for Data. Find the sample mean. Round to two decimal places. 1.48 Answer Key: 1.48 Feedback: use =AVERAGE function in Excel. Part 2 of 8 - Box Plot Knowledge Check Homework Practice 0.0/ 2.0 Points Question 4 of 20 0.0/ 1.0 Points To determine if Reiki is an effective method for treating pain, a pilot study was carried out where a certified second-degree Reiki therapist provided treatment on volunteers. Pain was measured using a visual analogue scale (VAS) immediately before and after the Reiki treatment (Olson & Hanson, 1997). Higher numbers mean the patients had more pain. Use the box-and-whiskers plots of the before and after VAS ratings to determine if the Reiki method was effective in reducing pain. Choose the best response from the options below.