Statistical Analysis of Sales of QUBEE Communication Ltd

1. As salamu alaikum
Very Good Evening
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3. We are Group - A, now ready
to present our Presentation.
We request, to be patient and Hope to stay with us.
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3GROUP - A

4. Assignment on:
Statistical Analysis of Sales of
QUBEE Communication Ltd.
4GROUP - A

5. Statistics???
5GROUP - A
Statistics is the science of collecting, organizing, presenting,
analyzing, and interpreting numerical data for the purpose of assisting
in making a more effective decision.
 Statistical techniques are used to make decisions that effect our
daily lives
 Insurance companies use statistics to set rates for different
insurance
 City corporation may want to examine the contamination level of
different lake water
 Medical professional assess the performance of a new drug over
the existing one
 No matter what is your future line of work, you will make
decisions that will involve data

6. Data Set collected from Qubee Communications Ltd.
6GROUP - A
This data set contains last Twelve months Sales volume against Advertisement cost.
Months Sales (million) Advertisement Cost (million)
January, 13 32.24 4
February,13 37.6 4.8
March,13 38.4 4.8
April,13 40.4 5.2
May,13 39.8 4.6
June,13 41.2 5.6
July,13 40 5.4
August,13 45.6 6
September,13 48 5.8
October, 2013 40.2 5.5
November, 2013 42.8 6.1
December, 2013 50.35 8.3

7. GROUP - A 7
Data presentation

8. GROUP - A 8
Data presentation

9. GROUP - A 9
Data presentation

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14. 14GROUP - A
Month
s
Sales (Y) Advertisem
ent Cost (X)
Jan, 13 32.24 4 (9.1425) 9.1425 -1.51 1.51
Feb,13 37.6 4.8 (3.7825) 3.7825 -0.71 0.71
Mar,13 38.4 4.8 (2.9825) 2.9825 -0.71 0.71
Apr,13 40.4 5.2 (0.9825) 0.9825 -0.31 0.31
May,13 39.8 4.6 (1.5825) 1.5825 -0.91 0.91
Jun,13 41.2 5.6 (0.1825) 0.1825 0.09 0.09
Jul,13 40 5.4 (1.3825) 1.3825 -0.11 0.11
Aug,13 45.6 6 4.2175 4.2175 0.49 0.49
Sep,13 48 5.8 6.6175 6.6175 0.29 0.29
Oct, 13 40.2 5.5 (1.1825) 1.1825 -0.01 0.01
Nov,
13 42.8 6.1 1.4175 1.4175 0.59 0.59
Dec, 13 50.35 8.3 8.9675 8.9675 2.79 2.79
= 496.59 = 66.1 42.44 8.52

15. 15GROUP - A
Range: Highest value for sales is 50.35 and lowest value is 32.24.
So, Range for sales = 50.35 – 32.24 = 18.11
Highest value for advertisement cost is 8.3 and lowest value is 4.
So, Range for advertisement cost = 8.3 – 4 = 4.3
Mean deviation: For sales,
= 3.54
For advertisement cost, MD = ∑| X − X |/n = .71
MD = ∑( Y − Y )/n

16. 16GROUP - A
Months Sales
(Y)
Advertisement
Cost (X)
Jan, 13 32.24 4 -9.14 -1.49 83.59 2.22
Feb,13 37.6 4.8 -3.78 -0.71 14.31 0.50
Mar,13 38.4 4.8 -2.98 -0.71 8.90 0.50
Apr,13 40.4 5.2 -0.98 -0.31 0.97 0.10
May,13 39.8 4.6 -1.58 -0.91 2.50 0.83
Jun,13 41.2 5.6 -0.18 0.09 0.03 0.01
Jul,13 40 5.4 -1.38 -0.11 1.91 0.01
Aug,13 45.6 6 4.22 0.49 17.79 0.24
Sep,13 48 5.8 6.62 0.29 43.79 0.08
Oct, 13 40.2 5.5 -1.18 -0.01 1.40 0.00
Nov, 13 42.8 6.1 1.42 0.59 2.01 0.35
Dec, 13 50.35 8.3 8.97 2.79 80.42 7.78
Total 908.1 115.5 0.00 0.00 257.60 12.63

17. 17GROUP - A
Variance for sales:
∑(Y − Y)2
/ n = 21.47
For advertisement cost:
∑(X − X)2
/n = 1.05
Standard deviation for sales= Variance = 47.21 = 4.6
advertisement cost =
Variance = 05.1 = 1.03

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The CV is the ratio of the standard deviation to the arithmetic mean,
expressed as a percentage:
100×=
X
s
CV
sales 100
38.41
6.4
×=CV =11.12%
advertisement cost
100
51.5
03.1
×=CV = 18.69%

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Correlation and regression are the most commonly used techniques for
investigating the relationship between two quantitative variables.
Comments for Scatter diagram:
We observe from the above scatter diagram that, the points are going upwards
from left side to right side and it is strong positive correlation. It means when
company increased their advertisement cost; sales have been increased.

22. Thank You
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