Week 2 Knowledge Check Homework Practice Questions.docx - Part 1 of 8 Measures of the Spread of Data Knowledge Check Homework 3.0 3.0 Points Question 1

# Week 2 Knowledge Check Homework Practice Questions.docx -...

• 24
• 100% (4) 4 out of 4 people found this document helpful

This preview shows page 1 - 4 out of 24 pages.

Part 1 of 8 - Measures of the Spread of Data Knowledge Check Homework3.0/ 3.0 PointsQuestion 1 of 201.0/ 1.0 PointsSuppose 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 data.xlsx8 KBA. Training 1B. Training 2C. They have the same mean so the variability is the same.Answer Key:AFeedback:Training 1 because the SD and Variance are bigger.Question 2 of 201.0/ 1.0 PointsFTES 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.Question 3 of 201.0/ 1.0 Pointsmovie data.xlsx9 KBTwenty-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.Feedback:use =AVERAGE function in Excel.Part 2 of 8 - Box Plot Knowledge Check Homework Practice2.0/ 2.0 PointsQuestion 4 of 201.0/ 1.0 PointsTo determine if Reiki is an effective method for treating pain, a pilot study was carried out wherea 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.