MICROSOFT XBOX 360 AND SONY PLAYSTATION3

Statistics Assignment

By

Dipesh Sanspara

Sony Playstation 3

Sony Corporation commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Kōnan Minato, Tokyo, Japan. Its diversified business is primarily focused on the electronics, game, entertainment and financial services sectors. The company is one of the leading manufacturers of electronic products for the consumer and professional markets. Sony is ranked 87th on the 2012 list of Fortune Global 500.

The first console in the series, the PlayStation, was the first video game console to ship 100 million units, 9 years and 6 months after its initial launch. Its successor, the PlayStation 2, was released in 2000. The PlayStation 2 is the best-selling home console to date, having reached over 150 million units sold as of January 31, 2011. 

Sony's latest console, the PlayStation 3, was released in 2006 has sold over 80 million consoles worldwide. The PlayStation 3 has been produced in various models: the original, the Slim, and the Super Slim. The PS3 officially went on sale in India on 27 April 2007, priced at Rs. 39,990 ($1000 at the conversion rate that time) for the 60 GB version.

The PlayStation 4 (PS4) is an upcoming video game console from Sony Computer Entertainment announced at a press conference on February 20, 2013.

Microsoft Xbox 360

Microsoft Corporation is an American multinational software corporation headquartered in Redmond, Washington that develops, manufactures, licenses, and supports a wide range of products and services related to computing. The company was founded by Bill Gates and Paul Allen on April 4, 1975. Microsoft is the world's largest software maker measured by revenues. It is also one of the world's most valuable companies.

The Xbox 360 is the second video game console developed by and produced for Microsoft and the successor to the Xbox. The Xbox 360 competes with Sony's PlayStation 3 and Nintendo's Wii as part of the seventh generation of video game consoles. As of June 30, 2013, 78.2 million Xbox 360 consoles have been sold worldwide. The Xbox 360 was released on November 22, 2005, in the United States and Canada.

Launch of Xbox 360 (20 GB) – Rs. 26,999.

Questionnaire

Sr no. Variables Song PS3 Xbox 360

1 Value for money

2 Graphic Quality

3 Audio Quality

4 Gameplay

5 Comfort of the controller

6 Storage capacity

7 Availability of games

8 Physical appearance

9 Brand Loyalty

10 After sales service

Research Methodology

A questionnaire was prepared of two brands

using different commonly known variables.

People were asked to rate the brands on a scale

of 1 to 5 (1 being the lowest and 5 highest.)

Each member had 10 people to ask and hence

the sample size taken into consideration was 50.

The average/mean was calculated, and was then

used for further calculations.

Rating Analysis

Sr no. Variables Sony PS3 Xbox 360

1 Value for money 3.56 2.22

2 Graphic Quality 3.78 3.60

3 Audio Quality 3.04 3.62

4 Gameplay 3.34 3.94

5 Comfort of the controller

4.18 2.52

6 Storage capacity 3.54 4.00

7 Availability of games 4.82 4.06

8 Physical appearance 3.94 2.84

9 Brand Loyalty 3.62 3.12

10 After sales service 2.90 2.66

Mean

Arithmetic mean is commonly referred to as "average" or simply as "mean".

A mathematical representation of the typical value of a series of numbers, computed as the sum of all the numbers in the series divided by the count of all numbers in the series. 

Formula, Arithmetic Mean = Σx/n

Example of Mean

Sr no. Variables Sony PS3 Xbox 360

1 Value for money 3.56 2.22

2 Graphic Quality 3.78 3.60

Interpretation:

Mean rating of value for money and graphic quality is higherfor Sony PS3 than Xbox.

Value

for m

oney

Graph

ic Qua

lity

Audio

Qua

lity

Gamep

lay

Comfo

rt o

f the

cont

rolle

r

Stora

ge cap

acity

Availa

bilit

y of

gam

es

Physica

l app

eara

nce

Brand

Loy

alty

After s

ales

ser

vice

0

1

2

3

4

5

6

Comparison of Mean

Song PS3 Xbox 360

Overall Mean

Sony PS3 Xbox 3603

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

Overall Mean

MEDIAN

The middle number in a sorted list of numbers. To determine the median value in a sequence of numbers, the numbers must first be arranged in value order from lowest to highest. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above. If there is an even amount of numbers in the list, the middle pair must be determined, added together and divided by two to find the median value.

Example of Median

Sr no. Variables Sony PS3 Xbox 360

1 Brand Loyalty 4 3

Median = 25th Obervation + 26th Obervation/2

Interpretation:

The median of Sony PS3 is 4, which is higher than Xbox 360.

MODE

The mode is the number that is repeated more often than any other in a set of data. 

Ratings for Storage Capacity:1) PS3: 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 ,3 ,3, 3, 3, 3, 3, 4,

4, 4, 4,4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5.

Mode is 4.

2) Xbox 360: 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5.

Mode is 4

STANDARD DEVIATION

It is a measure of how much spread or variability is present in the sample. If all the number in the sample are very close to each other in such cases SD is zero (0) and if the numbers are well dispersed than SD tends to be large. It is calculated as:

Standard Deviation (б) = ∑( x-x ) n-1

Example of Standard Deviation

Variable PS3 XBox

Graphic Quality 0.509 0.468

Interpretation:

The Standard deviation of in case ofPS3 is higher than Xbox.

Correlation Co-efficient

A measure that determines the degree to which two variable's movements are associated.

Co-efficient of Correlation(r) = ∑ x y

∑x² .

∑y² Variables PS3 Xbox 360

Gameplay & Graphic Quality

0.29 0.21

Correlation of Co-efficient

Interpretation:

They both show positive correlation.

SKEWENESS

• Measures of asymmetry of data – Positive or right skewed: Longer right tail– Negative or left skewed: Longer left tail

• Formula:- Skewness = 3(Mean-Mode) Std deviation

Variable PS3 Xbox 360

Availability of Games 5.7 4.26

Conclusion

The conclusion so drawn from the data was that both the gaming consoles are rated differently on the basis of different variables. So it can be concluded, that depending on customers priority for a particular variable the person could pick up his favoured console.