2. For this question, every student must analyse their own unique dataset. Your mark for this question will be zero if you use another student’s dataset!

To access your own personal dataset for this question, (from Blackboard!) go to the link:

http://www.mas.ncl.ac.uk/˜ndw/teaching/MAS1403/datasets/personal.html

A new page should open, and you should then click on your name and print off your personalised datasets for Question 2. You may, if you wish, use Minitab to help answer this Question.

(a) Produce appropriate graphical summaries for your data.

(b) Produce appropriate numerical summaries for your data.

(c) Write a short paragraph explaining your findings.

You are a data analyst working for a marketing company. You have collected the following data on monthly sales of a popular brand of electrical goods (£K) at a random sample of electrical goods stores both before and after an advertising campaign.