BBA109 QUANTITATIVE TECHNIQUES IN BUSINESS

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ASSIGNMENT

DRIVE	FALL 2016
PROGRAM	BBA
SEMESTER	I
SUBJECT CODE & NAME	BBA109 QUANTITATIVE TECHNIQUES IN BUSINESS
BK ID	B1500
CREDIT & MARKS	2 CREDITS & 30 MARKS

Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme.

Question.1.What do you mean by primary data? What are the various methods of collecting primary data?

Answer:Primary data is information that you collect specifically for the purpose of your research project. An advantage of primary data is that it is specifically tailored to your research needs. A disadvantage is that it is expensive to obtain.

Sources of Primary Data

The source of your primary data is the population sample from which you collect the data. The first step in the process is determining your target population. For example, if you are researching the marketability of a new washing machine, your target

Question.2. Write short notes on

a. Drafting Questionnaire

Answer:The following are the main steps in the drafting of questionnaire or schedule.

1. Decision Regarding Questions:To frame questionnaire or schedule, we have at first to decide regarding various questions to be incorporated. This decision of the selection of questions depends upon the purpose of enquiry. In this regard, precaution should be adopted to avoid irrelevant or unnecessary questions.

b. Quartile deviation

Answer:It is based on the lower quartile Q1 and the upper quartile Q3. The difference Q3−Q1 is called the inter quartile range. The difference Q3−Q1 divided by 2 is called semi-inter-quartile range or the quartile deviation. Thus

c. Applications of Time Series Analysis

Answer:Definition of Time Series: An ordered sequence of values of a variable at equally spaced time intervals.

Time series occur frequently when looking at industrial data

Applications: The usage of time series models is twofold:

d. Sampling and Non-Sampling Errors

Answer:To start with, the word error implies that a mistake has been made, so the term sampling error makes it sound as if we made a mistake while sampling. Well this is wrong. And the term non-sampling error (why is this even a term?) sounds as if it is the error we make from not sampling. And that is wrong too. However these terms are used extensively in the NZ statistics curriculum, so it is important that we clarify what they are about.

Question.3. a. Explain the meaning of Weighted Index Numbers.

Answer:These indices are of the simple aggregative type with the fundamental difference that weights are assigned to the various items included in the index. There are various methods of assigning weights and consequently a large number of formulae for constructing index numbers have been devised of which some of the more important ones are:

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	20			5		25			3
B	30			8		45			5
C	10			12		20			8
D	15			10		16			10
E	45			5		50			6

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:The Construction Price Indexes provide price indexes for single-family houses sold and for single-family houses under construction. The houses sold index incorporates the value of the land and is available quarterly at the national level and annually by region. The indexes for houses under construction are available monthly at the national level. The

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