Week 2 Knowledge Check Homework Practice Questions - SOLVED

Week 2 Knowledge Check Homework Practice Questions Return to Assessment List Part 1 of 8 - Measures of the Spread of Data Knowledge Check Homework 1.0/ 3.0 Points Question 1 of 20 FTES 8 KB The population FTES for 2005–2006 through 2010–2011 was given in an updated report. The data are reported here. See Attached Excel for Data. Standard Deviation: 167 Calculate the standard deviation. Round to one decimal place. Answer Key: 167.0| 167 Feedback: use =STDEV.S function in Excel. Question 2 of 20 Suppose that a manager wants to test two new training programs. They randomly select 5 people for each training type and measure the time it takes to complete a task after the training. The times for both trainings are in the attached Excel file. Which training method is more variable? training 8 KB A. Training 1 B. Training 2  C. They have the same mean so the variability is the same. MATH302 B006 Win 20   Tests & Quizzes Tests & Quizzes 1/19/2020 APUS CLE : MATH302 B006 Win 20 : Tests & Quizzes 0.0/ 1.0 Points 1.0/ 1.0 Points Answer Key: A Feedback: Training 1 because the SD and Variance are bigger. Question 3 of 20 FTES 8 KB The 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. Third Quartile:  1956.50 Answer Key: 1922.75 Feedback: use =QUARTILE.INC( , 3) function in Excel. Part 2 of 8 - Box Plot Knowledge Check Homework Practice 2.0/ 2.0 Points Question 4 of 20 A 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. The following box plots display the results. What is the interquartile range for the BMW 5 Series? 1/19/2020 APUS CLE : MATH302 B006 Win 20 : Tests & Quizzes 1.0/ 1.0 Points A. about 32 years  B. about 17 years C. about 42 years D. about 63 years Answer Key: B