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DRIVE
SPRING 2017
PROGRAM
BBA109
SEMESTER
I
SUBJECT
CODE & NAME BBA109 QUANTITATIVE TECHNIQUES IN BUSINESS
1 What do you
mean by primary data? What are the various methods of collecting primary data?
Meaning of Primary data
Methods of collecting primary data
Answer: Primary data
is the one, which is collected by the investigator for the purpose of a specific
inquiry or study. Such data is original in character and is generated by a
survey conducted by individuals or a research institution or any organisation.
Methods
of collecting the primary data
In “direct personal observation”, the
investigator collects the requisite information personally through observation
or by
2 Write short
notes on
a. Drafting
Questionnaire
b. Quartile
deviation
c. Applications
of Time Series Analysis
d. Sampling and
Non-Sampling Errors
Answer: a) The “questionnaire”
is a proforma containing a sequence of questions relevant to a statistical
enquiry. Since the questionnaire is the only medium of communication between
the investigator and the respondents, it must be designed or drafted with
utmost care and caution so that all relevant and essential information for the
enquiry may be collected without any difficulty, ambiguity, and vagueness.
Designing a questionnaire, therefore, requires a high
3 a. Explain the
meaning of Weighted Index Numbers.
b. Information
of sales price per unit of different commodities for two different years is
given in following table-
Commodities
|
2010
|
2016
|
||
Price
|
Quantity
|
Price
|
Quantity
|
|
A
|
15
|
4
|
20
|
5
|
B
|
24
|
6
|
28
|
8
|
C
|
16
|
4
|
25
|
4
|
D
|
32
|
8
|
30
|
12
|
E
|
35
|
3
|
32
|
4
|
F
|
8
|
2
|
15
|
3
|
Construct the
Price Index taking 2010 as the base year and 2016 as the current year by
following methods.
i. Laspeyre’s
Price Index
ii. Paasche’s
Method
iii. Dorbish and
Bowley’s method
iv. Fisher’s
Ideal Index Method
Answer: a) Weighted Index Number
In
this method weights are assigned to various commodities according to their
significance and consequently weighted index improves the accuracy of the index
number as compared to the unweighted one. Usually the quantity consumed during
the base year or the current year is taken as \
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