BBA109- QUANTITATIVE TECHNIQUES IN BUSINESS

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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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