BA3020QA – Assignment 3

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Using and Managing Data and Information
April cohort (2019 ! 2020)
BA3020QA – Assignment 3
Task 1
A supermarket manager wanted to investigate the profile of shoppers resistant
to the use of self-checkout counters available at the store he manages and to
find out the reasons behind their resistance. He asks three of his staff to
conduct a survey among customers using the store in Sheffield Hallam area
during a quiet working day in October of 2019 as they exited the store.
The short questionnaire used for the survey as well as the data collected can
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the questionnaire used and the other worksheet for the raw data collected
from the customers. The data worksheet has 18 columns. Column A
/1%:7$.”62 -: :-.<,= ( +$,%.& 7$ -‘”&7-#= 75″ +%:7$.”6 :%6>”=”‘ ? Customer
@; 1%:7$.”6 A “7+B )(+5 $# 75” $75″6 @C +$,%.&: 6″#”6 7$ ( question ?
Column B refers to the gender question, Column C refers to the age question
“7+B
The manager has employed you as data analyst to conduct this investigation.
Your analysis should use the statistical facilities on Excel as required below.
Required:
1. Label the codes for the categories of the following variables:
D E”&’”6
D FG”
D )’%+(7-$&
D F6″ =$% ( 6″G%,(6 %:”6 $# :”,#-checkout user
Note to students:
There are FOUR tasks and you are expected to complete all of them.
You are required to transfer the work of all tasks on to a single wordprocessed MS Word file and upload it on Turnitin, which is the
submission of this assignment. The deadline for this assignment is
(Monday 14th December 2020 before 3pm).
“
2. Produce frequency and percentage frequency tables for each of the following
variables:
D E”&’”6
D )’%+(7-$&
D FG”
D 011 %:”6
D 0<“&’-&G HIJ K$6 75-: ,(:7 L%(&7-7(7->” >(6-(!,”; 75″ +(7″G$6-“: :5$%,’ !” (:
follows:
<100 100-
109
110-
119
120-
129
130-
140
>140
3. Draw the graphical representation for each of the following variables:
D )’%+(7-$& HM-” +5(67J
D FG” HN(6 +5(67J
D 0<“&’-&G HO-:7$G6(.J %:-&G 75” #$,,$8-&G +(7″G$6-“:P
<100 100-
109
110-
119
120-
129
130-
140
>140
D 0<“&’-&G HN$* (&’ whisker) graph
4. 1$&:-‘”6 &$8 75″ >(6-(!,” /0<“&’-&G HIJ23
D 1(,+%,(7″ 75″ .-&-.%.; .(*-.%.; .”‘-(&; L%(67-,”: (&’ 75″ .”(& (>”6(G”
statistics.
D 1(,+%,(7″ 75″ .”(& (&’ :7(&'(6′ ‘”>-(7-$&2 :<,-7 != %:”6: H(&’ &$&-users)
of SCC.
5. Produce a cross-table between each of the following two variables and draw
an appropriate multiple bar chart:
D F6″ =$% ( 6″G%,(6 %:”6 $# :”,#-checkout user and Gender
D F6″ =$% ( 6″G%,(6 %:”6 $# :”,#-checkout user and Age
6. Draw a scatter diagram and calculate the correlation coefficient of Spending
against the reliability total score.
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%
Note:
The tasks and all their requirements should be clearly separated (preferably
each task starts on a separate page). All variables should be clearly named
and their correct categories clearly labelled. Graphs should be appropriate
and correctly labelled and each of them on the same page. Any calculations
should be clearly presented and explained.
Task 2
A plumber has decided to use the techniques of project management in order
to plan a job. He knew all the different activities of the job, their precedence
and their average durations. They are shown on the table below.
Activity Duration
(days)
Preceding
activities
A 1 None
B 2 None
C 3 A and B
D 1 None
E 2 A and C
F 4 E
G 3 D
H 2 F
I 1 H
J 1 G and I
Required:
1. Draw a network diagram representing the sequence of activities and the
dependence between them.
2. Determine how long it will take to complete the job by conducting the
forward pass
3. By conducting the backward pass, identify the critical path and the noncritical path(s).
Note:
The work for this task should be produced using Word drawing facilities. The
forward and backward passes should be clearly shown on the diagram. The
calculations should be shown next to the network diagram.
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Task 3
The quarterly sales figures for the number of shoes (pairs) sold at a shoe shop
is shown on the table below.
Year Quarter Sales
2015 1 139
2 135
3 91
4 113
2016 1 145
2 137
3 95
4 118
2017 1 150
2 141
3 99
4 119
2018 1 156
2 149
3 105
4 125
Required:
1. Draw a line graph to represent the sales figures.
2. Calculate the moving averages.
3. Calculate the centre moving averages
4. Present the original sales data and the trend of sales figures on the same line
graph.
‘
Task 4
A small cheese maker specialises in two types of cheese ? Brie and Gouda
that he makes and sells in packets of 400 grams. The cheese maker has
estimated that each packet of Brie uses 1.8 litres of special milk and 100
grams of special salt. For the Gouda cheese packet, the amounts of special
milk and salt needed are 1.2 litre and 150 grams respectively. The cheese
maker has a limited supply of special milk and salt and a maximum of only
120 litres of milk and 12000 grams of salt is made available each week. Once
produced and sold, the Brie packet returns a £2.80 profit and £2 profit for the
Gouda cheese.
Required:
1. Enter the information on the table below into an Excel file. You should also
-&:”67 (& (<<6$<6-(7″ #$6.%,( #$6 /4$7(, <6$#-72 (&’ L%(&7-7= /Q:”‘2 #$6 “(+5
$# 75″ /.-,92 (&’ /:(,72 6″:$%6+” -& 75″ +”,,: (: -&’-+(7″‘ !”,$83
Packet Brie Gouda
Quantity 0 0 Total
Profit
Unit
profit
(£)
2.8 2 Insert
formula
Used Symbol Max
Milk
(litres)
Insert
number
Insert
number
Insert
formula
120
Salt
(grams)
Insert
number
Insert
number
Insert
formula
12000
2. Find the solution of the linear programming problem (using Excel Solver)
3. Advise on the production of each type of cheese that yield maximum profit.