Module 4
Assignment 1: Discussion
You are working with a company selling building material to builders. You predict the quarterly purchases of customers based on their current purchases by using a linear regression model. These predictions, however, are not very accurate. Discuss at least three reasons why these predictions may not be accurate and offer three ways in which you can increase the likelihood of accurately predicting your customers’ purchases.
Post your response to the Discussion Area by Saturday, January 25, 2014.
Assignment 2: Controls
As a quality analyst you are also responsible for controlling the weight of a box of cereal. The Operations Manager asks you to identify the ways in which statistical quality control methods can be applied to the weights of the boxes. Provide your recommendations to the Operations Manager in a two-three page report. Using the data provided in the Doc Sharing area labeled M4A2Data, create Xbar and R charts.
Your report should indicate the following along with valid justifications of your answers:
- The control limits of the weights of the boxes.
- Nonrandom patterns or trends, if any.
- If the process is in control.
- The appropriate action if the process is not in control.
Submit your handout and summary to the M4: Assignment 2 Dropbox by Wednesday, January 29, 2014.
Assignment 2 Grading Criteria |
Maximum Points |
Using the data provided created Xbar and R charts. |
15 |
Set control limits for the weights of the boxes. |
15 |
Established the criteria for nonrandom patterns or trends, if any. |
15 |
Stated whether the process is in control, according to the limits and the criteria established in b and c above. |
15 |
Suggested the appropriate action if the process is not in control. |
15 |
Gave valid and supported reasons for their answer. |
15 |
Used correct grammar, spelling, and word choice and cited all sources using correct APA style. |
10 |
Total: |
100 |
Module 5
Assignment 2: LASA 2: Comprehensive Quiz
By Saturday, February 1, 2014 complete the comprehensive quiz.
This quiz is made up of short answer, multiple choice, True/False and application based questions designed to assess your business statistic’s knowledge. The quiz covers all the material presented in the class. Complete the entire quiz, answer the questions thoroughly and provide as much information as needed in your response.
Use the lecture notes, text, and outside resources to state your answers. Leave no question unanswered.
Assignment 1 Grading Criteria |
Maximum Points |
Short answer questions |
30 |
True and false questions |
6 |
Calculations |
29 |
Multiple Choice questions |
36 |
Word Problems |
24 |
Critical Thinking questions |
175 |
Total: |
300 |