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?
Differentiate between Primary Data and Secondary Data.
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 |
Write any three economic activities.
