Sponsor Area
What may be the areas of your interest? Write any three.
(i) Sale of car, (ii) Production of shoe-polish, and (iii) Production of bathing soap.
What is important for framing appropriate questions for a questionnaire?
The choice of identification of the target group is important for framing appropriate questions for a questionnaire.
What will be your target group of your project related to cars?
Our target group will mainly be the middle income and higher income groups for our project related to cars.
What are primary data?
Primary data are those data which are collected by the investigators himself for the first time for his own purpose.
What methods can be adopted for collecting primary data. Name these methods.
(i) Direct personal interview, (ii) Indirect personal interview, (iii) Information from correspondents, (iv) Mailed Questionnaire, (v) Questions filled by enumerator.
Write any three features of a good questionnaire?
(i) Questions should be simple and clear, (ii) Questions should be limited, (iii) Personal questions should be avoided.
What are secondary data?
Secondary data are those data which have been collected by some other individual organisations and not by the investigator himself. These data are available in the form of published or unpublished reports.
Write down the sources of secondary data.
The sources of secondary data are (a) Published sources (Govt. Publications), (b) Semi-government Publications, (iii) International Publications, (iv) Studies made by the Research Scholars.
When are secondary sources of data usually used?
Secondary sources of data are used when there is paucity of time, money and manpower and the required information is easily available.
What precautions should be taken while using secondary data?
The investigator should be assured of the reliability, adequacy and suitability of the data.
Name any three statistical tools.
(i) Arithmetic Mean, (ii) Mean deviation and (iii) Standard deviation.
What is a questionnaire?
A questionnaire is a list of questions prepared by an investigator on the subject of enquiry. The respondent is required to answer the questions.
Differentiate between Primary Data and Secondary Data.
Differences between Primary Data and Secondary Data:
|
Basis of Difference |
Primary Data |
Secondary Data |
|
1. Definition |
1. They are collected for the first time. |
1. They have already been collected by some other persons. |
|
2. Accuracy |
2. They are accurate. |
2. They lack accuracy. |
|
3. Nature of Data |
3. They are in the form of raw data to which statistical methods are applied. |
3. They are in the form of finished products. |
|
4. Editing |
4. They do not require editing. |
4. They require editing. |
|
5. Time and money |
5. Collection of primary data requires a lot of time and money. |
5. They dp not require a lot of time and money. |
|
6. Precaution |
6. Precaution is not required in the use of primary data. |
6. Precautions are required in the use of secondary data. |
Write down the essential qualities of a good questionnaire.
Essentials of a good questionnaire:Following are the essentials of a good questionnaire:
1. Limited number of questions:The number of questions should be limited as far as possible. Normally fifteen to twenty questions are sufficient enough for making the required enquiry.
2. Simplicity:The language of the questions should be simple and easily understandable. It should be clear and not vague. It should not convey two meanings.
3. Logically arranged:The questions should be arranged logically. Ther should be a proper sequence of the questions.
4. Related to the points:Questions should be related to the point. They should not be irrelevant.
5. Avoiding personal questions:Personal questions should be avoided as far as possible. For example, questions about income, volume of sales etc. should not be asked.
Show the following data with the help of a bar-diagram. Through which media do the people know about the product?
Median Influence
|
Advertisement |
Families influenced |
|
Television |
47 |
|
Newspaper |
30 |
|
Magazines |
20 |
|
Cinema |
25 |
|
Sales representative |
15 |
|
Exhibits - Stall |
10 |
|
Radio |
18 |
Observation : Majority of people came to know about the product either through television or through newspaper.
Sponsor Area
On the basis of the following information find out which types of air-conditioners are preferred by the people. Bases of preference are (i) Brand, (ii) Price, (iii) After sales service, and (iv) Technology.
Table
(in percentage)
|
Awareness |
Name of the Company |
||||
|
Videocon |
National |
Samsung |
L.G. Voltas |
Others |
|
|
Brand |
24 |
10 |
20 |
18 8 |
9 |
|
Price |
25 |
5 |
12 |
28 9 |
5 |
|
After sale service |
18 |
6 |
17 |
21 12 |
8 |
|
Technology |
22 |
8 |
12 |
17 14 |
14 |
From the table we observe that a high percentage of customers prefer to buy air-conditioners according to:
1. Brand : Videocon or Samsung. 2. Price : LG or Videocon
3. After sale service : LG or Videocon 4. Technology : Videocon or LG.
Ans. From the table we observe that a high percentage of customers prefer to buy air-conditioners according to :
1. Brand : Videocon or Samsung. 2. Price : LG or Videocon
3. After sale service : LG or Videocon 4. Technology : Videocon or LG.
From the following information, tell us which type of air conditioner you will prefer to buy and why? (Find out with the help of arithmetic mean).
Consumers Awareness about air-conditioners
(in percentage)
|
Awareness |
Name of the Companies |
|||||
|
Videocon |
National |
Samsung |
L.G. |
Voltas |
Others |
|
|
Brand |
14 |
10 |
20 |
18 |
8 |
9 |
|
Price |
25 |
5 |
12 |
28 |
19 |
5 |
|
After sale service |
18 |
6 |
17 |
21 |
12 |
8 |
|
Technology |
22 |
8 |
12 |
17 |
14 |
10 |
Calculation of Arithmetic Mean:
Consumer Awareness about air-conditioners
|
Awareness |
Name of the Companies |
|||||
|
Videocon |
National |
Samsung |
L.G. |
Voltas |
Others |
|
|
Brand |
24 |
10 |
20 |
18 |
8 |
9 |
|
Price |
25 |
5 |
12 |
28 |
9 |
5 |
|
After sale service |
18 |
6 |
17 |
21 |
12 |
8 |
|
Technology |
22 |
8 |
12 |
17 |
14 |
10 |
|
ΣX |
89 |
29 |
61 |
84 |
43 |
32 |
|
|
22.25% |
7.25% |
15.25% |
21% |
10.75% |
8.50% |
Frame one two-way questions and one multiple choice question relating to a questionnaire that you intend to design for collecting primary data on the level and composition of expenditure of the people in your locality.
1. Two-way Questions:Is your monthly expenditure equal to or less than your monthly income:
2. Multiple Choice:What is your major item of expenditure during the month
Sponsor Area
Sponsor Area
