100%(1)1 out of 1 people found this document helpful
This preview shows page 1 - 4 out of 14 pages.
1.0/ 1.0 Points1.0/ 1.0 PointsWeek 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 20final grade data.xlsx8 KBAn instructor wants to compare spread (variation) of final grades of students in her online class and face-to-face class. Theinstructor selects 10 students randomly from each class and the following table shows the final grades of those students.See Attached Excel for Data.The standard deviation of final grades for the face-to-face class is 11.90 .Use the information to respond to the followingquestion:(round to 2 decimal places)Question 2 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.Calculate the third quartile. Round to two decimal places.Answer Key: 1922.75Feedback: use =QUARTILE.INC( , 3) function in Excel.Question 3 of 20MATH302 D002 Sum 20Tests & QuizzesTests & Quizzes
/1.0/ 1.0 Points1.0/ 1.0 Pointsmovie data.xlsx9 KBTwenty-five randomly selected students were asked the number of movies they watched the previous week. Theresults are as follows:See Attached Excel for Data.Find the sample mean.Round to two decimal places.Feedback: use =AVERAGE function in Excel.Part 2 of 8 - Box Plot Knowledge Check Homework Practice2.0/ 2.0 PointsQuestion 4 of 20A survey was conducted of 130 purchasers of new BMW 3 series cars, 130 purchasers of new BMW 5 series cars,and 130 purchasers of new BMW 7 series cars. In it, people were asked the age they were when they purchased their car. Thefollowing box plots display the results.What is the interquartile range for the BMW 5 Series?