Page 199 - DMGT209_QUANTITATIVE_TECHNIQUES_II

Quantitative Techniques-II

Notes Speed in miles / hr.

73 49 70 63
55 61 60 68
52 50 69 60

65 66 59 62
Calculate the appropriate statistics for central tendency and dispersion.
14. The XYZ TV manufacturer is in the market for the past eight years. A survey conducted in
the past by an MR agency produced the following score using Likert Scale. The data for
various years is as below:
2000 - 18

2001 - 16
2002 - 17
2003 - 18
2004 - 20
(a) What do you conclude about the customers’ attitude?

(b) Is it favourable or unfavourable?
15. A consumer durable company manufacturing TV sets is trying to measure consumer
attitudes towards a product. For this purpose, the company wants the customer to complete
a questionnaire which indicates several product attributes. It was decided by the company
that only five attributes that affect the sale of the product would be considered for analysis.
The attributes were appearance, quality of the picture, sound, after-sales service and price.
The following scales are used to assess the product:

Neither
Strongly Agree Strongly
Disagree Agree
disagree nor agree
Disagree
1. Appearance is good ___ ___ ___ ___ X
2. Price is reasonable ___ ___ ___ X ___
3. After-sales service is good ___ ___ ___ X ___
4. Sound quality is excellent ___ X ___ ___ ___
5. Picture is sharp ___ ___ ___ ___ X
1 2 3 4 5
Suppose the customer has inspected the product and the response is as shown in the table
above:
(a) What is the total score?
(b) What according to you is the attitude of the customer? Is it favourable or unfavourable?

Answers: Self Assessment

1. Interval 2. Thurstone

3. Multi-dimensional 4. Equal appearing interval

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