I. Introduction: (5% marks) Provide a brief introduction to what this assignment is about and how your sample was selected? II. Data Analysis (80 marks): This section must answer the following...

I.    Introduction: (5% marks)

Provide a brief introduction to what this assignment is about and how your sample was selected?



II.    Data Analysis (80 marks):

This section must answer the following specific questions

Section A: Basic Analysis (30 marks)
1.    Brand demand: (6 marks)
A.    Calculate the proportion of customers who purchased brand A and brand B. Report your results in the following table.  (2 marks)
B.    Use an appropriate chart to graphically display Information in the table above and summarize your conclusions on brand popularity.  (Which brand is the most popular?)
2.    Weights of Tuna cans by brand: ( 7 marks)
A.    Complete the following table  ( 3 marks)
B.    Compare the average weight and spread of weights by brand. (4 marks)
3.    Frequency distribution: (10 marks)
A.    Complete the following frequency distribution table for each brand weight of cans.               (4 marks)
B.    Use appropriate charts to plot the relative frequency distribution and cumulative relative frequency distribution table. ( 3 marks)
C.    What proportion of each brand of cans is under-filled? Recall “under-filling” means the can is under-filled by 2 or more than 2 grams?  (i.e. the can contains 2 or more than 2 grams less than what is specified on the label).  (3 marks)
4.    Under-filled or not?  (7 marks)
A.    Complete the following cross classification table (2 + 2)
B.    Use an appropriate chart to graphically display the above table.
Is the under-filling behaviour of brand A’s producer any different from that of brand B’s producer? (3 marks)
5.     Potential Demand for NT Tuna (12 marks)
A.    Complete the following table (3 marks)