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1.0/ 1.0 Points1.0/ 1.0 PointsWeek 2 Knowledge Check Homework Practice QuestionsWeek 2 Knowledge Check Homework Practice QuestionsReturn to Assessment ListPart 1 of 8 - Measures of the Spread of Data Knowledge Check Homework3.0/ 3.0 PointsQuestion 1 of 20
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.xlsx8 KBA. 45.76!B. 47.71C. 2195D. 46.85E. 9.02F. 2276.29Answer Key: Answer Key: BFeedback: Feedback: use =STDEV.S function in Excel.Question 2 of 20Suppose that a manager wants to test two new training programs. They randomly select 5 people for each training typeand measure the time it takes to complete a task after the training. The times for both trainings are in the attached Excel file. Whichtraining method is more variable?training data.xlsx8 KBMATH302 B008 Sum 20∠#$Tests & QuizzesTests & QuizzesTests & Quizzes
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!A. Training 1B. Training 2C. They have the same mean so the variability is the same.Answer Key: Answer Key: AFeedback: Feedback: Training 1 because the SD and Variance are bigger.Question 3 of 20FTES data.xlsx8 KBThe population FTES for 2005–2006 through 2010–2011 was given in an updated report. The data are reported here.See Attached Excel for Data.Mean: !1810.7Calculate the mean. Round to one decimal place.Feedback: Feedback: use =AVERAGE function in ExcelPart 2 of 8 - Box Plot Knowledge Check Homework Practice2.0/ 2.0 PointsQuestion 4 of 20The length of the box in the boxplot portrays the!C. interquartile rangeD. meanAnswer Key: Answer Key: CFeedback: Feedback: IQR = Q3 - Q1Question 5 of 20
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