MATH221 DeVry University Week 4 Statistics for Decision Making Worksheet

Open the Week 4 Lab Document (Links to an external site.) to complete the lab for this week. All of the directions are included in the document.

Here is the Excel data file (also was used for Week 2 Lab) for this lab: Data File for Week 4 Lab. (Links to an external site.)

Please watch this Week 4 Lab Demonstration Video.

Here is Week 1: Resources where you open the needed Excel Template for questions 1 and 2.

Here is Week 3: Resources where you open the needed Excel Template for questions 2, 3, and 4.

The document includes places where you need to input the answers. Any place where you see a gray box is where you need to put an answer.


Fill in the document, save it with your name in the title, and submit the document.

Grading Rubric

Question 11012%Mean and standard deviation
Question 21518%Three graphs
Questions 3 and 4, 15 points each, 30 total3035%Probabilities
Questions 5-9, 6 points each, 30 total3035%Calculations and interpretations
Total85100%A quality lab will meet or exceed all of the above requirements.

Required Software

Microsoft Office: Word and Excel

Use a personal copy or access the software at (Links to an external site.).

Lab Steps

Prepare and Submit Lab

  1. Open Excel.
  2. Open the lab Word document.
  3. Follow the steps in the lab Word document to do calculations in Excel.
  4. Copy and paste from Excel into the Word document or retype the answer, and then complete the answers to the questions in complete sentences (fill in each gray box in the Word document).
  5. Save the lab Word document, and submit your lab; no other files should be submitted


"Looking for a Similar Assignment? Order now and Get 10% Discount! Use Code "Newclient"