For this first assignment, simply attempt to recreate the plots and research report format provided in the suggested solution. As part of your write-up:

:: Submit a single document, but begin each new research case (problem) on a new sheet :: Place borders around Minitab tables and graphs

:: For conclusions, please begin each conclusion statement with, There is sufficient statistical evidence to infer....

Submit a brief report for each problem below that is consistent with the format presented in Module 01. Include graphs/plots and written conclusion based on the graphical data for the following.

Return to the Med-Line scenario and data presented in Module 01.

1. Create a Dot Plot and Boxplot to compare the response Complaints by Month by the

   variable Type. Where does the data suggest the problem occurs?

2. Create a Dot Plot and Boxplot to compare the response ACW (After Call Work typically

   measured in minutes) by the variable CSR (customer service rep). Who seems to be involved when the problem occurs?

Research is being conducted to determine whether operational differences exist between two supply hubs in Portland and Minneapolis. Inconsistencies in operational performance contribute to inconsistent customer experience, subsequent complaints and loss of business. File: Assignment 1 data.mtw can be found in the Window menu of the the Module 01.mpj file.

1. Does there appear to be any significant upward or downward trend in revenue for Portland and Minneapolis over time? (columns 1 and2) (hint: time series plot, multiple)

2. If only one type of Product Return can be researched and addressed for correction, what would you recommend be addressed first and why? (hint: Pareto)

3. Which sites revenue performs better on average? (hint: box plots or graphical summaries)

4. Which sites revenue exhibits the most variability? (hint: box plots or graphical summaries)

5. Is there a linear relationship between Portland and Minneapolis revenues? In other words,

   can we predict one locations revenue based upon the other location? (hint: scatter plot with regression)